Wittmann 2020d
Wittmann 2020d
WITTMANN, K.J., 2020d. Addenda to the Lophogastrida and Mysida of the "Valdivia" Expedition 1898-1899, with description of a new species of Longithorax Illig, 1906 and range extension in Echinomysis chuni Illig, 1905 (Crustacea: Malacostraca). Spixiana. Zeitschrift für Zoologie, 43 (1): 81-92.
Free access at http://www.zsm.mwn.de/die-zsm/spixiana/archiv/
Examination of previously unpublished samples of Lophogastrida and Mysida taken in 1898-1899 by the "Valdivia" Expedition with vertical hauls from 1500-3000 m depth to the surface in the East Atlantic and the Indian Ocean yielded the lophogastrids Eucopia unguiculata (Willemoës-Suhm, 1875), E. grimaldii H. Nouvel, 1942, E. scultpicauda Faxon, 1893, and the mysids Boreomysis microps G.O. Sars, 1883, Hemisiriella parva Hansen, 1910, Longithorax valdiviae spec. nov., Euchaetomera tenuis G.O. Sars, 1883, and Echinomysis chuni Illig, 1905. This last species is recorded from subantarctic waters east of Bouvet Island; as the first representative of its genus outside tropical to temperate zones. Longithorax valdiviae spec. nov. from the South Indian Ocean is characterized among other features by multi-segmented sixth thoracic endopods and a modified seta on the tip of the endopod of fourth male pleopods. A revised diagnosis and a key to the species of Longithorax Illig, 1906, are given.
mysids; lophogastrids; taxonomic revision; first description; East Atlantic; Indian Ocean; Valdivia Expedition; new species; new records
Lophogastrida; Eucopia unguiculata; Eucopia sculpticauda; Eucopia grimaldii; Mysida; Mysidae; Boreomysinae; Boreomysis microps; Siriellinae; Hemisiriella parva; Erythropinae; Longithorax; Longithorax valdiviae n. sp., Euchaetomera tenuis; Echinomysis chuni.