Hydatina zonata from Japan

August 10, 2001
From: Nishina Masayoshi


Dear Dr.Rudman,

Hydatina zonata is common in Hachijo, but it is a seasonal animal, usually found between June and October. I temporarily dug them from the sand and moved them to the rock so I could photograph them.

Date: 1 July, 2001
Place: Sokodo, Hachijo Island, Japan
Depth: 8m
Size: 50mm & 30mm

Best Regards,
Nishina Masayoshi

nishina@hpe15.wips.co.jp

Nishina, M, 2001 (Aug 10) Hydatina zonata from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4976

Dear Nishina,
Thanks for these beautiful photographs. Do you ever find Hydatina physis or Hydatina cinctoria (= Hydatina albocincta) with H. zonata? Hydatina cinctoria is the one with broad brown spiral bands on the shell. I sometimes wonder whether these three species are just colour forms of one species
Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Aug 10). Comment on Hydatina zonata from Japan by Nishina Masayoshi . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4976

Factsheet

Hydatina zonata

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