Hydatina amplustre
(Linnaeus, 1758)

Order: CEPHALASPIDEA
Superfamily: ACTEONOIDEA
Family: Hydatinidae

DISTRIBUTION

Tropical Indo-West Pacific.

PHOTO

Rottnest Is, Western Australia. Animal approx 2cm long. PHOTO: Clay Bryce.

Smaller and with a more heavily calcified shell than the other species of Hydatina, this species with its characteristic pink bands outlined in black, is found throughout the tropical Indo-West Pacific. It is reported to feed on cirratulinid polychaete worms (Rudman, 1972).

Reference:
• Rudman, W.B. (1972) The anatomy of the opisthobranch genus Hydatina and the functioning of the mantle cavity and the alimentary canal. Zoological Journal of the Linnean Society 51(2): 121-139.

Authorship details
Rudman, W.B., 1999 (July 12) Hydatina amplustre (Linnaeus, 1758). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/hydaampl

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