Anguilla

• It is the “Fresh water eel”.

• Body is elongated, streamlined, serpent like and covered by soft skin.

• Head and trunk is sub cylindrical, tail laterally compressed.

• Caudal fin is gephyrocercal.

• Undergoes catadromous migration for spawning.

• Males are smaller than females.

• Pelvic fins are absent, gill openings are minute.

• Life cycle consists of 4 stages – Leptocephalus larva, Elver/ glass eel, yellow eel and silver eel.