[日本語のものはこちら] 

Education and Career

2002Apr–2006Mar B.c., Hokkaido Univ., Japan (Advisors: Shunsuke F Mawatari & Hiroshi Kajihara)

2006Apr–2008Mar M.c., Hokkaido Univ., Japan (Advisors: Shunsuke F Mawatari & Hiroshi Kajihara)

2008Apr–2011Mar D.c., Hokkaido Univ., Japan (Advisors: Shunsuke F Mawatari, Haruo Katakura, & Hiroshi Kajihara)

2010Apr–2011Mar JSPS Research Fellow (DC2), Hokkaido Univ., Japan (Advisors: Haruo Katakura & Hiroshi Kajihara)

2011Apr–2012Mar JSPS Research Fellow (PD), Hokkaido Univ., Japan (Advisor: Haruo Katakura)

2012Apr–2015Mar Researcher, Hokkaido Univ., Japan (Advisor: Matthew H Dick)

2015Apr– Lecturer, Hokkaido Univ., Japan

Papers (peer-reviewed) (AM, accepted manuscript; PreRef, pre-refereed author version; roPDF, read-only PDF)

1. Kakui K, Kajihara H, Mawatari SF (2007) Two new sphyrapodid species (Crustacea: Tanaidacea: Apseudomorpha) from southwestern Japan. Zootaxa 1563: 37–54. https://doi.org/10.11646/zootaxa.1563.1.4

2. Kakui K, Kajihara H, Mawatari SF (2010) A new species of Nesotanais Shiino, 1968 (Crustacea: Tanaidacea) from Japan, with a key to species and a note on male chelipeds. ZooKeys 33: 1–17. https://doi.org/10.3897/zookeys.33.296 PDF

3. Tomikawa K, Kakui K, Yamasaki H (2010) A new species of Psammogammarus (Amphipoda: Melitidae) from Kuchinoerabu Island, Japan, with a note on its feeding habits. Zoological Science 27: 615–626. https://doi.org/10.2108/zsj.27.615 PDF

4. Hiruta SF, Kakui K (2010) Digital illustration techniques using graphics software. TAXA, Proceedings of the Japanese Society of Systematic Zoology 29: 19–30. [in Japanese with English Abstract] https://doi.org/10.19004/taxa.29.0_19 PDF

5. Kakui K, Kajihara H (2011) Pseudosphyrapus cuspidiger sp. nov. from the Nansei Islands, Japan, with a supplementary description of Kudinopasternakia balanorostrata Kakui, Kajihara and Mawatari, 2007 (Crustacea: Tanaidacea: Apseudomorpha: Sphyrapodidae). In: Komai T, Komatsu H (Eds.) New Crustaceans of Japan 2. Bulletin of the National Museum of Nature and Science Supplement 5: 53–70. Link PDF

6. Shimomura M, Kakui K (2011) A new species of the genus Ingolfiella Hansen, 1903 (Peracarida, Amphipoda) from Ogasawara Islands, southern Japan. Crustaceana 84: 543–551. https://doi.org/10.1163/001121611X574308

7. Kakui K, Katoh T, Hiruta SF, Kobayashi N, Kajihara H (2011) Molecular systematics of Tanaidacea (Crustacea: Peracarida) based on 18S sequence data, with an amendment of suborder/superfamily-level classification. Zoological Science 28: 749–757. https://doi.org/10.2108/zsj.28.749 PDF

8. Kakui K, Kobayashi N, Kajihara H (2012) Phylogenetic position of Arctotanais in the suborder Tanaidomorpha (Peracarida: Tanaidacea). Journal of Crustacean Biology 32: 127–139. https://doi.org/10.1163/193724011X615406 AM PDF

9. Kakui K, Angsupanich S (2012) Birdotanais songkhlaensis, a new genus and species of Nototanaidae (Crustacea: Tanaidacea) from Thailand. Raffles Bulletin of Zoology 60: 421–432. Link PDF

10. Shimomura M, Kakui K (2012) A new species of Stegidotea Poore, 1985 (Isopoda: Chaetillidae) from Japan. Crustaceana Monographs 17: 303–314. https://doi.org/10.1163/9789004202894_025

11. Shimada D, Kakui K, Kajihara H (2012) A new species of deep-sea nematode, Micoletzkyia mawatarii sp. nov. (Nematoda: Enoplida: Phanodermatidae) from northern Japan. Species Diversity 17: 221–226. https://doi.org/10.12782/sd.17.2.221 PDF

12. Uyeno D, Kakui K, Nagasawa K (2013) New record of Cardiodectes medusaeus (Wilson, 1908) (Copepoda: Siphonostomatoida: Pennellidae) from a stranded pearly lanternfish, Myctophum nitidulum Garman (Myctophiformes: Myctophidae) from the Ryukyu Islands, southern Japan. The Biological Magazine Okinawa 51: 67–72. [in Japanese with English abstract] Link PDF

13. Kakui K, Hiruta C (2013) Selfing in a malacostracan crustacean: why a tanaidacean but not decapods. Naturwissenschaften 100: 891–894. https://doi.org/10.1007/s00114-013-1079-5 AM + Suppl roPDF

14. Kakui K, Angsupanich S (2013) Description of three species of Halmyrapseudes (Crustacea: Tanaidacea: Parapseudidae), with a discussion of biogeography. Zootaxa 3736: 345–367. https://doi.org/10.11646/zootaxa.3736.4.3 PreRef

15. Kakui K, Yamasaki H (2013) Nototanaids (Crustacea: Tanaidacea) from Japan, with the description of a new species of Nototanoides. Species Diversity 18: 245–254. https://doi.org/10.12782/sd.18.2.245 PDF

16. Kakui K, Hiruta C (2014) Diverse pereopodal secretory systems implicated in thread production in an apseudomorph tanaidacean crustacean. Journal of Morphology 275: 1041–1052. https://doi.org/10.1002/jmor.20281 AM roPDF PDF

17. Kakui K (2014) A novel transmission pathway: first report of a larval trematode in a tanaidacean crustacean. Fauna Ryukyuana 17: 13–22. PDF

18. Kohtsuka H, Kakui K, Kajihara H (2014) Northernmost records of Antedon serrata A. H. Clark from Hokkaido. Bulletin of the Biogeographical Society of Japan 69: 185–188 [in Japanese with English abstract]

19. Kakui K, Kohtsuka H (2015) Two new shallow-water species of Agathotanais (Crustacea: Tanaidacea) from Japan. Species Diversity 20: 45–58. https://doi.org/10.12782/sd.20.1.045 PDF

20. Kajihara H, Tomioka S, Kakui K, Iseto T (2015) Phylogenetic position of the queer, backward-bent entoproct Loxosoma axisadversum (Entoprocta: Solitaria: Loxosomatidae). Species Diversity 20: 83–88. https://doi.org/10.12782/sd.20.1.083 PDF

21. Kakui K, Naruse T (2015) Indoapseudes bamberi sp. nov. (Crustacea: Tanaidacea: Pagurapseudidae: Hodometricinae) from Iriomote Island, Ryukyu Islands, southwestern Japan. Zootaxa 3995: 138–148. https://doi.org/10.11646/zootaxa.3995.1.14

22. Shimada D, Kakui K (2015) First record of the free-living marine nematode Deontostoma magnificum (Timm, 1951) Platonova, 1962 (Nematoda: Leptosomatidae) from Japan. Nematological Research 45: 13–18. https://doi.org/10.3725/jjn.45.13 PDF

23. Nakano H, Kakui K, Kajihara H, Shimomura M, Jimi N, Tomioka S, Tanaka H, Yamasaki H, Tanaka M, Izumi T, Okanishi M, Yamada Y, Shinagawa H, Sato T, Tsuchiya Y, Omori A, Sekifuji M, Kohtsuka H (2015) JAMBIO Coastal Organism Joint Surveys reveals undiscovered biodiversity around Sagami Bay. Regional Studies in Marine Science 2 supplement: 77–81. https://doi.org/10.1016/j.rsma.2015.05.003

24. Uyeno D, Kakui K (2015) The first record of a species of Clausiidae (Copepoda: Cyclopoida) from Japanese waters, with the proposal of a new genus. Species Diversity 20: 153–158. https://doi.org/10.12782/sd.20.2.153 PDF

25. Kajihara H, Kakui K, Yamasaki H, Hiruta SF (2015) Tubulanus tamias sp. nov. (Nemertea: Palaeonemertea) with two different types of epidermal eyes. Zoological Science 32: 596–604. https://doi.org/10.2108/zs140250 PDF

26. Kakui K (2016) Descriptions of two new species of Rhizorhina Hansen, 1892 (Copepoda: Siphonostomatoida: Nicothoidae) parasitic on tanaidacean crustaceans, with a note on their phylogenetic position. Systematic Parasitology 93: 57–68. https://doi.org/10.1007/s11230-015-9604-x AM roPDF

27. Kaji T, Kakui K, Miyazaki N, Miura K, Palmer AR (2016) Mesoscale morphology at nanoscale resolution: serial block-face scanning electron microscopy reveals fine 3D detail of a novel silk spinneret system in a tube-building tanaid crustacean. Frontiers in Zoology 13: 14. https://doi.org/10.1186/s12983-016-0146-0 PDF

28. McClain CR, Barry JP, Eernisse D, Horton T, Judge J, Kakui K, Mah CL, Wáren A (2016) Multiple processes generate productivity-diversity relationships in experimental wood-fall communities. Ecology 97: 885–898. https://doi.org/10.1890/15-1669.1 AM PDF

29. Hiruta SF, Kakui K (2016) Three new brackish-water thalassocypridine species (Crustacea: Ostracoda: Paracyprididae) from the Ryukyu Islands, southwestern Japan. Zootaxa 4169: 515–539. https://doi.org/10.11646/zootaxa.4169.3.6

30. Tomioka S, Kondoh T, Sato-Okoshi W, Ito K, Kakui K, Kajihara H (2016) Cosmopolitan or cryptic species?―A case study of Capitella teleta (Annelida: Capitellidae). Zoological Science 33: 545–554. https://doi.org/10.2108/zs160059 PDF

31. Narahara-Nakano Y, Kakui K, Tomikawa K (2016) Opisa takafuminakanoi, a new species of Opisidae from Hokkaido, Japan (Crustacea: Amphipoda). Zootaxa 4200: 335–339. https://doi.org/10.11646/zootaxa.4200.2.9

32. Kajihara H, Kakui K (2016) An overview of recent marine-biodiversity research in Japan. pp. 25–45. In: Motokawa M, Kajihara H (eds) Species Diversity of Animals in Japan, Springer, Japan. https://doi.org/10.1007/978-4-431-56432-4_2 invited PDF

33. Kakui K (2016) Review of the taxonomy, diversity, ecology, and other biological aspects of Order Tanaidacea from Japan and surrounding waters. pp. 603–627. In: Motokawa M, Kajihara H (eds) Species Diversity of Animals in Japan, Springer, Japan. https://doi.org/10.1007/978-4-431-56432-4_23 invited AM PDF

34. Jimi N, Tsujimoto M, Watanabe K, Kakui K, Kajihara H (2017) A new species and the shallowest record of Flabegraviera Salazar-Vallejo, 2012 (Annelida: Flabelligeridae) from Antarctica. Zootaxa 4221: 477–485. https://doi.org/10.11646/zootaxa.4221.4.4 PDF

35. Komai T, Marin I, Kakui K (2017) Rediscovery and redescription of the abyssal squat lobster Munidopsis petalorhyncha Baba, 2005 (Crustacea: Decapoda: Munidopsidae) from the Northwest Pacific. Zootaxa 4226: 93–102. https://doi.org/10.11646/zootaxa.4226.1.4

36. Kakui K, Suzuki A, Nakano H, Kohtsuka H (2017) Habitat of a tanaidacean Apseudes nipponicus Shiino, 1937. Bulletin of the Kitakyushu Museum of Natural History and Human History Series A (Natural History) 15: 1–3. https://doi.org/10.34522/kmnh.15.0_1 PDF

37. Kakui K, Hayakawa Y, Katakura H (2017) Difference in size at maturity in annual and overwintering generations in the tanaidacean Zeuxo sp. in Oshoro Bay, Hokkaido, Japan. Zoological Science 34: 129–136. https://doi.org/10.2108/zs160134 PDF + Suppl

38. Kakui K, Shimada D (2017) A new species of Tanaopsis (Crustacea: Tanaidacea) from Japan, with remarks on the functions of serial ridges and grooves on the appendages. Zootaxa 4282: 324–336. https://doi.org/10.11646/zootaxa.4282.2.6 AM

39. Bayartogtokh B, Shimano S, Hagino W, Kakui K, Hiruta SF, Hartini S (2017) Morphology of a newly recorded species, Eremaeozetes octomaculatus Hammer, 1973 from Indonesia (Acari: Oribatida: Eremaeozetidae), with its genetic information. International Journal of Acarology 43: 444–449. https://doi.org/10.1080/01647954.2017.1341548

40. Kakui K, Hiruta C (2017) Tube construction by a tanaidacean crustacean using a novel mucus secretion system involving the anal opening. Zoological Letters 3: 20. https://doi.org/10.1186/s40851-017-0082-7 PDF

41. Tanabe Y, Hayashi R, Tomioka S, Kakui K (2017) Hexapleomera urashima sp. nov. (Crustacea: Tanaidacea), a tanaidid epibiotic on loggerhead sea turtles at Yakushima Island, Japan. Zootaxa 4353: 146–160. https://doi.org/10.11646/zootaxa.4353.1.9

42. Shimada D, Suzuki AC, Tsujimoto M, Imura S, Kakui K (2017) Oncholaimus langhovdensis sp. nov. (Nematoda: Enoplea: Oncholaimida), a new species of free-living marine nematode from Langhovde, Dronning Maud Land, East Antarctica. Species Diversity 22: 151–159. https://doi.org/10.12782/specdiv.22.151 PDF

43. Nakano H, Miyazawa H, Maeno A, Shiroishi T, Kakui K, Koyanagi R, Kanda M, Satoh N, Omori A, Kohtsuka H (2017) A new species of Xenoturbella from the western Pacific Ocean and the evolution of Xenoturbella. BMC Evolutionary Biology 17: 245. https://doi.org/10.1186/s12862-017-1080-2 PDF

44. Kakui K, Fujita Y (2018) Haimormus shimojiensis, a new genus and species of Pseudozeuxidae (Crustacea: Tanaidacea) from a submarine limestone cave in Northwestern Pacific. PeerJ 6: e4720. https://doi.org/10.7717/peerj.4720 PDF

45. Kakui K, Tomioka S (2018) Tsuranarthrura shinsei, a new genus and species in Anarthruridae (Crustacea: Tanaidacea) from the Northwestern Pacific. Species Diversity 23: 61–68. https://doi.org/10.12782/specdiv.23.61 PDF

46. Nakano H, Miyazawa H, Maeno A, Shiroishi T, Kakui K, Koyanagi R, Kanda M, Satoh N, Omori A, Kohtsuka H (2018) Correction to: A new species of Xenoturbella from the western Pacific Ocean and the evolution of Xenoturbella. BMC Evolutionary Biology 18: 83. https://doi.org/10.1186/s12862-018-1190-5 PDF

47. Hiruta C, Kakui K, Tollefsen KE, Iguchi T (2018) Targeted gene disruption by use of CRISPR/Cas9 ribonucleoprotein complexes in the water flea Daphnia pulex. Genes to Cells 23: 494–502. https://doi.org/10.1111/gtc.12589 PDF

48. Kakui K, Tanabe Y (2018) First report of the chelonophilic tanaidid Hexapleomera urashima from an environment other than the surface of sea turtles. Fauna Ryukyuana 45: 5–8. PDF

49. Tomioka S, Kakui K, Kajihara H (2018) Molecular phylogeny of the family Capitellidae (Annelida). Zoological Science 35: 436–445. https://doi.org/10.2108/zs180009 PDF

50. Hosoda Y, Tomioka S, Kakui K (2018) First record of Hemichela nanhaiensis (Pycnogonida: Ammotheidae) from Japanese waters, with the first description of females. Species Diversity 23: 215–218. https://doi.org/10.12782/specdiv.23.215 PDF

51. Shimada D, Kakui K (2019) Two new and one known species of Phanodermatidae (Nematoda: Enoplida) from Sagami Bay, Japan. Zootaxa 4608: 484–500. https://doi.org/10.11646/zootaxa.4608.3.4

52. Kakui K, Uyeno D, Naruse T (2019) First molecularly confirmed conspecific male and female pair in Konariinae (Crustacea: Tanaidacea), with the description of a new species. Species Diversity 24: 49–60. https://doi.org/10.12782/specdiv.24.49 PDF

53. Kakui K, Shimomura M, Kimura S, Kimura T (2019) Topotype-based DNA barcode of the parasitic isopod Pseudione nephropsi (Bopyridae), with a supplementary morphological description. Species Diversity 24: 103–108. https://doi.org/10.12782/specdiv.24.103 PDF

54. Tanabe Y, Kakui K (2019a) Two Hexapleomera species from Japan, with a new species description and discussion of phylogenetic relationships within Hexapleomera (Crustacea: Tanaidacea). Zootaxa 4648: 318–336. https://doi.org/10.11646/zootaxa.4648.2.7

55. Kakui K, Hiruta C, Uyeno D (2019) Sexual system in the tanaidacean Falsapseudes bowmani (Crustacea: Malacostraca: Peracarida). Invertebrate Biology 138: e12257. https://doi.org/10.1111/ivb.12257 AM roPDF PDF

56. Kakui K, Nakano T (2019) On the authorship of the genus-group name Curtipleon (Crustacea: Tanaidacea: Metapseudidae). Species Diversity 24: 179–180. https://doi.org/10.12782/specdiv.24.179 PDF

57. Tanabe Y, Kakui K (2019b) First report of Teleotanaidae (Crustacea: Tanaidacea) from the Northwestern Pacific, with the description of a new species. Species Diversity 24: 181–187. https://doi.org/10.12782/specdiv.24.181 PDF

58. Kakui K (2019) Shell-exchange behavior in a hermit-crab-like tanaidacean (Crustacea: Malacostraca). Zoological Science 36: 468–470. https://doi.org/10.2108/zs190048 PDF

59. Kakui K, Fujita Y (2020) Paradoxapseudes shimojiensis sp. nov. (Crustacea: Tanaidacea: Apseudidae) from a submarine limestone cave in Japan, with notes on its chelipedal morphology and sexual system. Marine Biology Research 16: 195–207. https://doi.org/10.1080/17451000.2020.1720249 AM

60. Kakui K (2020) First record of a tanaidacean crustacean fed upon by an arrow worm (Chaetognatha). Bulletin of the Kitakyushu Museum of Natural History and Human History Series A (Natural History) 18: 1–4. https://doi.org/10.34522/kmnh.18.0_1 PDF

61. Homma R, Uyeno D, Kakui K (2020) Integrative taxonomy of Pseudolepeophtheirus longicauda (Crustacea: Copepoda: Caligidae) parasitic on Platichthys stellatus (Actinopterygii: Pleuronectidae). Parasitology International 78: 102135. https://doi.org/10.1016/j.parint.2020.102135 AM

62. Kakui K, Fujiwara Y (2020) First in situ observations of behavior in deep-sea tanaidacean crustaceans. Zoological Science 37: 303–306. https://doi.org/10.2108/zs200028 PDF

63. Tomikawa K, Kakui K, Fujiwara Y (2020) A new species of Nicippe from the Bering Sea (Crustacea, Amphipoda, Pardaliscidae), with a redescription of N. tumida. ZooKeys 965: 37–53. https://doi.org/10.3897/zookeys.965.51749 PDF

64. Kakui K, Uyeno D (2020) New replacement name for a homonym in Lepeophtheirus (Crustacea: Copepoda: Caligidae). Zootaxa 4852: 143–144. https://doi.org/10.11646/zootaxa.4852.1.9

65. Hosoda Y, Kakui K (2020) A new species of Pantopipetta (Pycnogonida: Austrodecidae) from the North Pacific, with a note on the palp articulation. Marine Biology Research 16: 390–395. https://doi.org/10.1080/17451000.2020.1758946 AM

66. Okamoto N, Oya Y, Kakui K (2020) A new species of Zeuxo (Crustacea: Peracarida: Tanaidacea) from Japan, with remarks on carapace pigmentation as a potentially useful taxonomic character. Marine Biology Research 16: 411–422. https://doi.org/10.1080/17451000.2020.1766693 AM

67. Kakui K, Nomaki H, Komatsu H, Fujiwara Y (2020) Unexpected low genetic differentiation between Japan and Bering Sea populations of a deep-sea benthic crustacean lacking a planktonic larval stage (Peracarida: Tanaidacea). Biological Journal of the Linnean Society 131: 566–574. https://doi.org/10.1093/biolinnean/blaa106 PDF + Suppl

68. Shimada D, Kakui K (2020) A new species of free-living marine nematode, Proplatycoma tsukubae sp. nov. (Enoplida: Leptosomatidae), from Japan. Species Diversity 25: 205–211. https://doi.org/10.12782/specdiv.25.205 PDF

69. Uyeno D, Kakui K, Watanabe HK, Fujiwara Y (2021) Dirivultidae (Copepoda: Siphonostomatoida) from hydrothermal vent fields in the Okinawa Trough, North Pacific Ocean, with description of one new species. Journal of the Marine Biological Association of the United Kingdom 100: 1283–1298. https://doi.org/10.1017/S0025315420001101 roPDF

70. Kakui K (2021) Tube-constructing paratanaoidean tanaidaceans (Crustacea: Peracarida): a brief review. Aquatic Animals AA2021: AA2021-4. https://doi.org/10.34394/aquaticanimals.AA2021.0_AA2021-4_4 PDF

71. Shimada D, Suzuki AC, Tsujimoto M, Imura S, Kakui K (2021) Two new species of free-living marine nematodes (Nematoda: Axonolaimidae and Tripyloididae) from the coast of Antarctica. Species Diversity 26: 49–63. https://doi.org/10.12782/specdiv.26.49 PDF

72. Munakata M, Tanaka H, Kakui K (2021) Heterocypris spadix sp. nov. (Crustacea: Ostracoda: Cypridoidea) from Japan, with information on its reproductive mode. Zoological Science 38: 287–296. https://doi.org/10.2108/zs200127 PDF

73. Kakui K, Kano Y (2021) First complete mitochondrial genome of a tanaidacean crustacean (Arctotanais alascensis). Zoological Science 38: 267–272. https://doi.org/10.2108/zs200167 PDF

74. Kakui K, Shiraki S (2021) Presumptive stridulatory organs in Paranthura cf. japonica Richardson, 1909 (Isopoda: Cymothoida: Paranthuridae). Journal of Crustacean Biology 41: ruab026. https://doi.org/10.1093/jcbiol/ruab026 AM

75. Kakui K, Fukuchi J, Shimada D (2021a) First report of marine horsehair worms (Nematomorpha: Nectonema) parasitic in isopod crustaceans. Parasitology Research 120: 2357–2362. https://doi.org/10.1007/s00436-021-07213-9 roPDF AM

76. Worsaae K, Hansen MJ, Axelsen O, Kakui K, Møller PR, Osborn KJ, Martínez A, Gonzalez BC, Miyamoto N, Fujita Y (2021) A new cave-dwelling genus and species of Nerillidae (Annelida) from the Ryukyu Islands, Japan. Marine Biodiversity 51: 67. https://doi.org/10.1007/s12526-021-01199-4 roPDF

77. Kakui K, Munakata M, Tanaka H, Hiruta C (2021b) Mismatch between similarity of mitochondrial gene order and phylogenetic distance in Podocopa (Crustacea: Ostracoda). Zoologischer Anzeiger 293: 145–148. https://doi.org/10.1016/j.jcz.2021.05.011 AM

78. Shiraki S, Shimomura M, Kakui K (2021) A new species of Expanathura (Crustacea: Isopoda: Anthuroidea) from Iriomote Island, Japan, with a note on male polymorphism. Zootaxa 5047: 377–390. https://doi.org/10.11646/zootaxa.5047.3.9

79. Kakui K, Fleming JF, Mori M, Fujiwara Y, Arakawa K (2021c) Comprehensive transcriptome sequencing of Tanaidacea with proteomic evidences for their silk. Genome Biology and Evolution 13: evab281. https://doi.org/10.1093/gbe/evab281 PDF

80. Kakui K, Komai T (2022) First record of Scutariella japonica (Platyhelminthes: Rhabdocoela) from Hokkaido, Japan, and notes on its host shrimp Neocaridina sp. aff. davidi (Decapoda: Caridea: Atyidae). Aquatic Animals 2022: AA2022-1. https://doi.org/10.34394/aquaticanimals.2022.0_AA2022-1 PDF

81. Shimada D, Kakui K (2022) Three free-living marine nematodes from Sagami Bay, Japan, with a description of Wiesoncholaimus jambio sp. nov. (Nematoda: Oncholaimidae). Zoological Science 39: 106–114. https://doi.org/10.2108/zs210053 PDF

82. Kakui K, Hiruta C (2022) Description of a new Hamatipeda species, with an 18S molecular phylogeny (Crustacea: Tanaidacea: Typhlotanaidae). Zoological Science 39: 140–146. https://doi.org/10.2108/zs210065 PDF

83. Shiraki S, Shimomura M, Kakui K (2022a) A new neotenous genus and species, Deltanthura palpus gen. et sp. nov. (Isopoda, Anthuroidea, Paranthuridae) from Japan, with a revised key to the genera in Paranthuridae. Zoosystematics and Evolution 98: 109–115. https://doi.org/10.3897/zse.98.81772 PDF

84. Kakui K (2022) Digenean metacercariae parasitic in a staurozoan cnidarian. Zoological Science 39: 215–218. https://doi.org/10.2108/zs210099 PDF

85. Munakata M, Tanaka H, Kakui K (2022) Taxonomy and natural history of Cavernocypris hokkaiensis sp. nov., the first ostracod reported from alpine streams in Japan. Zoosystematics and Evolution 98: 117–127. https://doi.org/10.3897/zse.98.80442 PDF

86. Kakui K, Shimada D (2022) Dive into the sea: first molecular phylogenetic evidence of host expansion from terrestrial/freshwater to marine organisms in Mermithidae (Nematoda: Mermithida). Journal of Helminthology 96: e33. https://doi.org/10.1017/S0022149X22000256 roPDF AM

87. Shiraki S, Kakui K (2022) Observations on predation in Paranthura japonica Richardson, 1909 (Isopoda: Cymothoida: Paranthuridae). Zoological Science 39: 270–274. https://doi.org/10.2108/zs210122 PDF

88. Hayakawa Y, Kakui K (2022) Biological notes on Zeuxo ezoensis Okamoto et al., 2020 (Crustacea: Peracarida: Tanaidacea). Aquatic Animals 2022: AA2022-10. https://doi.org/10.34394/aquaticanimals.2022.0_AA2022-10 PDF

89. Hirano K, Kakui K (2022) A new brackish tanaidacean, Sinelobus kisui sp. nov. (Crustacea, Peracarida, Tanaidacea), from Japan, with a key to Sinelobus species and barcode information from two loci. Zoosystematics and Evolution 98: 245–256. https://doi.org/10.3897/zse.98.84818 PDF

90. Shiraki S, Shimomura M, Kakui K (2022b) First report of Hyssuridae (Isopoda: Anthuroidea) from Japan, with the description of a new Kupellonura species. Nauplius 30: e2022023. https://doi.org/10.1590/2358-2936e2022023 PDF

91. Kakui K, Hiruta C (2022b) Protogynous hermaphroditism in Crustacea: a new example from Tanaidacea. Canadian Journal of Zoology 100: 481–487. https://doi.org/10.1139/cjz-2022-0033 AM AM

92. Okamoto N, Kakui K (2022) Integrative taxonomy of Zeuxo (Crustacea: Peracarida: Tanaidacea) from Japan, with the description of a new species. Biologia 77: 2497–2506. https://doi.org/10.1007/s11756-022-01121-8 roPDF AM

93. Tanaka M, Kakui K (2023) On the original publications for six tanaidacean names proposed by Sueo M. Shiino. Zootaxa 5231: 192–194. https://doi.org/10.11646/zootaxa.5231.2.6

94. Matsumoto Y, Kajihara H, Kakui K (2023a) A new species of Leipsuropus Stebbing, 1899 (Amphipoda: Podoceridae) from Japan. Nauplius 31: e2023005. https://doi.org/10.1590/2358-2936e2023005 PDF

95. Kakui K, Munakata M (2023) A new Sphaeronella species (Copepoda: Siphonostomatoida: Nicothoidae) parasitic on Euphilomedes sp. (Ostracoda: Myodocopa: Philomedidae) from Hokkaido, Japan, with an 18S molecular phylogeny. Systematic Parasitology 100: 121–131. https://doi.org/10.1007/s11230-022-10075-z roPDF AM

96. Okamoto N, Kakui K (2023) Phototaxis in two shallow-water Zeuxo species (Crustacea: Tanaidacea). Zoological Science 40: 203–207. https://doi.org/10.2108/zs220118 PDF

97. Kakui K, Fukuchi J, Ohta M (2023) Diexanthema hakuhomaruae sp. nov. (Copepoda: Siphonostomatoida: Nicothoidae) from the hadal zone in the northwestern Pacific, with an 18S molecular phylogeny. Acta Parasitologica 68: 413–419. https://doi.org/10.1007/s11686-023-00676-z roPDF AM

98. Kakui K, Fujita Y (2023) New sea spider species (Pycnogonida: Austrodecidae) from a submarine cave in Japan. Journal of the Marine Biological Association of the United Kingdom 103: e44. https://doi.org/10.1017/S0025315423000322 roPDF AM

99. Kakui K, Hiruta C (2023) Differential masculinization of the chelipeds in two simultaneously hermaphroditic Apseudes tanaidaceans (Crustacea: Malacostraca). Zoologischer Anzeiger 305: 23–27. https://doi.org/10.1016/j.jcz.2023.05.004 AM

100. Matsumoto Y, Kajihara H, Kakui K (2023b) Capropodocerus, a new genus in Podoceridae (Crustacea: Amphipoda) from Japan, with descriptions of two new species. Zootaxa 5336: 577–589. https://doi.org/10.11646/zootaxa.5336.4.8

101. Sato A, Arakawa K, Kakui K (2023) Two new species in Leptocheliidae (Crustacea: Peracarida: Tanaidacea) from Japan, with notes on their phylogenetic position and aspects of morphology. Zoologischer Anzeiger 306: 51–68. https://doi.org/10.1016/j.jcz.2023.06.006

102. Shimada D, Kakui K, Fujita Y (2023) A new species of free-living marine nematode, Fotolaimus cavus sp. nov. (Nematoda, Oncholaimida, Oncholaimidae), isolated from a submarine anchialine cave in the Ryukyu Islands, southwestern Japan. Zoosystematics and Evolution 99: 519–533. https://doi.org/10.3897/zse.99.109097 PDF

103. Nonaka M, Hanahara N, Kakui K (2023) A new species of Coralliidae (Cnidaria: Octocorallia) collected from eastern Japan. Species Diversity 28: 231–243. https://doi.org/10.12782/specdiv.28.231 PDF

104. Kakui K, Tsuyuki A (2024) Flatworm cocoons in the abyss: same plan under pressure. Biology Letters 20: 20230506. https://doi.org/10.1098/rsbl.2023.0506 AM

105. Kakui K, Hiruta C (2024) A smaller species releases proportionally larger juveniles in Apseudes (Crustacea: Peracarida: Tanaidacea). CBM-Cahiers de Biologie Marine 65: 35–37. https://doi.org/10.21411/CBM.A.F7E539FB AM PDF (will appear after 2yrs embargo, i.e. on 27Jan2026)

106. Sonoda T, Chiba S, Yamazaki T, Nobetsu T, Fujiya H, Komai T, Nunomura N, Shimomura M, Tomikawa K, Kakui K, Hosono T, Ito A, Fujita T, Kobayashi I, Goshima S (2024) Marine macroinvertebrate fauna of the shallow coastal waters of the Shiretoko Peninsula, a World Natural Heritage at Hokkaido, Japan. Plankton & Benthos Research 19: 1–16. https://doi.org/10.3800/pbr.19.1 PDF PDF

107. Kakui K (2024a) Review on studies of fossils in Tanaidacea (Crustacea: Malacostraca: Peracarida). Fossils (Palaeontological Society of Japan) 115: 65–76. [in Japanese with English abstract] https://doi.org/10.14825/kaseki.115.0_65 PDF

108. Kakui K (2024b) A new parasitic barnacle (Crustacea, Cirripedia, Rhizocephala, Mycetomorpha) from the abyssal zone in the northwestern Pacific. Zoosystematics and Evolution 100: 385–390. https://doi.org/10.3897/zse.100.120887 PDF

109. Kakui K (2024c) Molecular phylogeny confirms that “Pseudolepeophtheirus” schmidti Gusev, 1951 belongs in Lepeophtheirus (Crustacea, Copepoda, Caligidae). Spixiana 46: 173–177. https://pfeil-verlag.de/publikationen/spixiana-zeitschrift-fuer-zoologie-band-46/ PDF PDF

110. Shiraki S, Kakui K (2024a) Description of a new Cruranthura species from the Miyako Islands, Japan, with its DNA barcode (Isopoda: Anthuroidea: Paranthuridae). Species Diversity 29: 65–72. https://doi.org/10.12782/specdiv.29.65 PDF

111. Kakui K (2024d) Brixitanais, a new substitution name for Brixia Jóźwiak, Drumm, Bird & Błażewicz, 2018 (Crustacea: Tanaidacea: Akanthophoreidae). Zootaxa 5458: 449–450. https://doi.org/10.11646/zootaxa.5458.3.9

112. Shiraki S, Kakui K (2024b) Ontogenetic changes in pigmentation pattern in Mesanthura miyakoensis (Crustacea: Isopoda: Anthuridae). Zoological Science 41: 323–328. https://doi.org/10.2108/zs230122 PDF

113. Matsushima Y, Kakui K (2024) Apseudes ranma sp. nov. (Tanaidacea: Apseudidae) found in a public aquarium, with notes on phylogeny and a presumptive stridulatory organ. Bulletin of Marine Science 100: 451–469. https://doi.org/10.5343/bms.2024.0030 AM PDF (will appear after 5yrs embargo, i.e. on 25July2029)

114. Shiraki S, Kakui K (2024c) Isopods on isopods: integrative taxonomy of Cabiropidae (Isopoda: Epicaridea: Cryptoniscoidea) parasitic on anthuroid isopods, with descriptions of a new genus and three new species from Japan. Invertebrate Systematics 38: IS24013. https://doi.org/10.1071/IS24013 AM AM

115. Jiménez-Mejías P, Manzano S, Gowda V, Krell F-T, Lin M-Y, Martín-Bravo S, Martín-Torrijos L, Feliner GN, Mosyakin SL, Naczi RFC, Acedo C, Álvarez I, Crisci JV, Luceño Garcés M, Manning J, Saiz JCM, Muasya AM, Riina R, Meseguer AS, Sánchez-Mata D, 1,543 additional coauthors (2024) Protecting stable biological nomenclatural systems enables universal communication: A collective international appeal. BioScience 74: 467–472. https://doi.org/10.1093/biosci/biae043 PDF

116. Kakui K, Fujita Y (2024) Foettingeriidae (Ciliophora: Apostomatia) molecularly detected from Tanaidacea (Crustacea: Peracarida). Protistology 18: 240–243. https://doi.org/10.21685/1680-0826-2024-18-3-6 PDF

117. Kakui K (2024e) Nectonema horsehair worms (Nematomorpha) parasitic in the Tanner crab Chionoecetes bairdi, with a note on the relationship between host and parasite phylogeny. Diseases of Aquatic Organisms 159: 153–157. https://doi.org/10.3354/dao03815 AM PDF (will appear after 5yrs embargo, i.e. on 12September2029)

118. Munakata M, Kakui K (2024) Lagenophryid ciliophorans on Japanese freshwater ostracods. Aquatic Animals 2024: AA2024-28. https://doi.org/10.34394/aquaticanimals.2024.0_AA2024-28 PDF

119. Shiraki S, Yoshida R, Kakui K (2024) Paranthura oriens sp. nov. (Isopoda: Anthuroidea: Paranthuridae) from Tateyama, Chiba, Japan. Plankton and Benthos Research 19: 233–243. https://doi.org/10.3800/pbr.19.233 PDF

120. Kakui K, Sekiguchi S (2024) Colonial entoproct epibiotic on a sea spider. Zoological Science 41: 529–532. https://doi.org/10.2108/zs240070 PDF (will appear after 1yr embargo, i.e. in December2025)

121. Matsushita H, Kakui K (2024) Two new Rhynchothorax sea spiders from Japan (Pycnogonida, Rhynchothoracidae). Spixiana 47: 15–28. https://pfeil-verlag.de/publikationen/spixiana-zeitschrift-fuer-zoologie-band-47/ https://www.zobodat.at/pdf/Spixiana_047_0015-0028.pdf PDF

122. Munakata M, Tanaka H, Kakui K (2024) A new genus and species of the spring-endemic Ostracoda (Cypricercinae, Cyprididae) and its genetic population structure among rheocrenic springs in Japan. Zoological Studies 63: 51. https://doi.org/10.6620/ZS.2024.63-51 PDF

123. Shiraki S, Kakui K (2025a) Trematode metacercariae parasitic in the estuarine crustacean Cyathura muromiensis Nunomura, 1974 (Peracarida: Isopoda: Anthuroidea). Parasitology International 104: 102973. https://doi.org/10.1016/j.parint.2024.102973 AM (will appear after 1yr embargo, i.e. on 23September2026)

124. Kakui K, Shiraki S, Hookabe N (2025) Fecampiid flatworms parasitic in a tanaidacean crustacean. Journal of Helminthology 99: e24. https://doi.org/10.1017/S0022149X25000057 roPDF AM

125. Kakui K (2025) Biological notes on Makassaritanais itoi (Ishimaru, 1985) (Crustacea: Peracarida: Tanaidacea). Aquatic Animals 2025: AA2025-11. https://doi.org/10.34394/aquaticanimals.2025.0_AA2025-11 PDF

126. Ota Y, Kakui K, Shimomura M (2025) Review of the Gnathiidae (Crustacea: Isopoda) of western Japan with a description of five new species, one redescription, and one new Japanese record. Bulletin of Marine Science 101: 941–993. https://doi.org/10.5343/bms.2024.0086 PDF (will appear after 5yrs embargo, i.e. on 31March2030)

127. Shiraki S, Kakui K (2025b) Four species of Mesanthura (Crustacea: Isopoda: Anthuroidea) from Japan, including the description of a new species. Journal of the Marine Biological Association of the United Kingdom 105: e48. https://doi.org/10.1017/S0025315425000402 roPDF

128. Ohta M, Kakui K, Kojima S, Shimomura M (2025) Integrative taxonomy of Janirella (Isopoda: Asellota: Janirellidae), with descriptions of two new species from the Japan Trench and an amended classification of the genus. Biologia 80: 1407–1423. https://doi.org/10.1007/s11756-025-01906-7 roPDF

129. Sekiguchi S, Kohtsuka H, Kakui K (2025) First record of the deep-sea sea spider Bathypallenopsis californica (Arthropoda: Pycnogonida) from the northwestern Pacific, with a note on an attached crinoid. Zoological Science 42: 335–341. https://doi.org/10.2108/zs250004 PDF (will appear after 1yr embargo, in June 2026)

130. Shiraki S, Kakui K (2025) First report of Paranthura japonica Richardson, 1909 (Crustacea: Isopoda: Paranthuridae) from Okinawa, Japan. Aquatic Animals 2025: AA2025-30. https://doi.org/10.34394/aquaticanimals.2025.0_AA2025-30 [in Japanese with English abstract] PDF

131. Matsushima Y, Bâlcu M-J, Kakui K (2025) Atlantapseudes tridens sp. nov. (Tanaidacea: Apseudidae) from the Okinawa Trough, Japan, with a note on the taxonomic status of Atlantapseudes curvatus. Zootaxa 5679: 484–500. https://doi.org/10.11646/zootaxa.5679.4.2
     
     

132. Tsutsui K, Kakui K (online first) Overlooked parasite diversity in Staurozoa: two species of Lepocreadiidae (Trematoda: Digenea) parasitic in Haliclystus tenuis. Zoological Science. https://doi.org/10.2108/zs250001 AM PDF (will appear after 1yr embargo, i.e. in Aug2026)

133. Oguchi K, Munakata M, Hiruta C, Kakui K (online first) Intracellular localization of the bacterial endosymbiont Cardinium in the ostracod Heterocypris spadix. Zoological Science. https://doi.org/10.2108/zs250018 PDF (will appear after 1yr embargo, i.e. in Aug2026)

134. Shiraki S, Kakui K, Along A, Calagui K, Calagui SI, Demetillo M, Kajihara H, Leones JA, Rojas-Salinas A, Sanchez-De los Reyes KA, Seronay R, Tsuyuki A, Abato J (in press) Taxonomic revision of Sauranthura (Isopoda: Anthuroidea: Anthuridae), with the description of Sauranthura xxxxx sp. nov. from Surigao del Sur, Philippines. Marine Biology Research. https://doi.org/10.1080/17451000.2025.2512450  AM (will appear after 6m embargo, i.e. on xxMonth2026)

135. xx, Kakui K (accepted) xx. Spixiana.

136. Shiraki S, Kakui K, Abatay M, Caneos W, Dahilog-Caralde M, Kajihara H, Tsuyuki A, Abato J (accepted) On a new anthurid Amakusanthura xxxx sp. nov. (Crustacea: Isopoda: Anthuroidea) from Camiguin Island, Philippines. Journal of Natural History. https://doi.org/10.1080/00222933.2025.2529500 AM (will appear after 1yr embargo, i.e. on xxMonth2026)

137. Munakata M, ..., Kakui K (accepted) xx. xx.

Papers (not peer-reviewed; selected)

1. Kakui K, Tomioka S, Yamasaki H (2014) Tanaidaceans from Rishiri Island (Crustacea: Peracarida). Rishiri Studies 33: 7–12. [in Japanese with English abstract] PDF

2. Kakui K (2015) First report of Zeuxo sp. (Crustacea: Tanaidacea) as prey for the forktongue goby, Chaenogobius annularis Gill, 1859. Rishiri Studies 34: 1–6. [in Japanese with English abstract and caption] PDF

3. Kakui K (2016) Diversity of sexual and reproductive systems in Tanaidacea. Cancer 25: 131–136. [in Japanese] https://doi.org/10.18988/cancer.25.0_131 PDF

4. Kakui K, Munakata M, Tomioka M (2021) Zeuxo ezoensis (Crustacea: Tanaidacea) from an open-air pool on Rishiri Island. Rishiri Studies 40: 21–24. [in Japanese with English abstract] PDF

5. Kakui K (2022) Predation of tanaidacean crustaceans by Haliclystus tenuis (Cnidaria: Staurozoa) in captivity. Bulletin of the Otaru Museum 35: 9–12. [in Japanese with English abstract] PDF

6. Kakui K, Munakata M (2022) The protozoan Lagenophrys sp. (Peritrichida: Sessilida: Lagenophryidae) symbiotic on Cryptocandona sp. (Ostracoda: Podocopa: Candonidae) from Hokkaido, Japan. Bulletin of the Otaru Museum 35: 13–16. [in Japanese with English abstract] PDF

Data deposited in open access repository (selected)

1. Kakui K, Hiruta C (2017) Tube construction by a tanaidacean Parapseudes algicola (Shiino, 1952). figshare. (https://doi.org/10.6084/m9.figshare.5373928)

2. Kakui K (2019) Shell exchange in the hermit-crab-like tanaidacean, Macrolabrum sp. figshare. (https://doi.org/10.6084/m9.figshare.7916288)

3. Kakui K (2020) Living Carpoapseudes spinigena individual in a surface core sampler. figshare. (https://doi.org/10.6084/m9.figshare.12038886.v1)

4. Kakui K (2021a) Snapping behavior in Dulichiella sp. (Crustacea: Peracarida: Amphipoda). figshare. (https://doi.org/10.6084/m9.figshare.14742579)

5. Kakui K (2021b) Feeding behavior in Haliclystus tenuis Kishinouye, 1910 (Cnidaria: Staurozoa) in captivity. figshare.
   (https://doi.org/10.6084/m9.figshare.15087924)

6. Kakui K (2022) Occurrence records of Japanese Sinelobus tanaidaceans and their published sources and online sources ver. 20220321. figshare. (https://doi.org/10.6084/m9.figshare.19561966.v1)

7. Kakui K, Tsuyuki A (2024) Supplementary material from "Flatworm cocoons in the abyss: same plan under pressure". figshare. (https://doi.org/10.6084/m9.figshare.c.7020979.v1)

8. Kakui K (2024) Fecampiids and their reported hosts ver. 20241113. figshare. (https://doi.org/10.6084/m9.figshare.27313239)

Grants etc. (selected)

2010Apr–2012Mar Japan Society for Promotion of Science (JSPS): Grant-in-Aid (no. 10J01119 or 22·1119)

2012Apr–2014Mar Research Institute of Marine Invertebrate Foundation, Japan: Research grant

2014Apr–2015Mar Japan Science Society: Sasakawa Scientific Research Grant

2015Apr–2016Mar Fujiwara Natural History Public Interest Incorporated Foundation, Japan: Research grant

2016Apr–2019Mar Japan Society for Promotion of Science (JSPS): Grant-in-Aid for Young Scientists (B) (no. 16K18597)

2017Apr–2018Mar Akiyama Life Science Foundation, Japan: Research grant

2018Sep–2020Aug Mikimoto Fund for Marine Ecology: Research grant

2019Apr–2024Mar Japan Society for Promotion of Science (JSPS): Grant-in-Aid for Scientific Research (C) (no. 19K06800)

2020Apr–2025Mar Japan Society for Promotion of Science (JSPS): Grant-in-Aid for Scientific Research (B) (no. 20H03313) [Co-Investigator]

2022Apr–2026Mar Japan Society for Promotion of Science (JSPS): Grant-in-Aid for Scientific Research (B) (no. 22H02681) [Co-Investigator]

2025Oct–2026Sep XXXXXXX: Research grant

Committee activities (selected)

2016Jan–2019Dec Councilor, Japanese Society of Systematic Zoology, Japan

2018Jul–2022Sep Committee member, Sapporo-branch, Zoological Society of Japan, Japan

2023May– Taxonomic editor (Tanaidacea), World Register of Marine Species (WoRMS)

2024Nov– Committee member, Sapporo-branch, Zoological Society of Japan, Japan

Editorial activities

2016Jan–2019Dec Associate Editor, Species Diversity (Japanese Society of Systematic Zoology, Japan)

2016May–2021Apr Associate Editor, Japanese Journal of Benthology (Japanese Association of Benthology, Japan)

Reviewing Experience

Aquatic Animals

Biology Letters

Cancer

CBM-Cahiers de Biologie Marine

Crustaceana

Crustacean Research

Deep Sea Research Part I

Deep Sea Research Part II

Ecology

Fauna Ryukyuana

Hydrobiologia

Japanese Journal of Benthology

Journal of Eukaryotic Microbiology

Journal of Helminthology

Journal of Natural History

Journal of the Marine Biological Association of the United Kingdom

Marine Biodiversity

Marine Biology Research

Micron

Parasitology International

PeerJ

Plankton and Benthos Research

Polish Polar Research

Progress in Oceanography

Raffles Bulletin of Zoology

Scientific Reports

Species Diversity

Systematics and Biodiversity

Taxa

Zoological Journal of the Linnean Society

Zoological Science

Zoologica Scripta

Zoosystematica Rossica

Zootaxa