Phyllidia ocellata from Japan (2)

January 14, 2002
From: Yasuhiro Shirai

Dear Bill,
I found this animal at the rocky reef of Kii Peninsula, Middle Japan, on 24th June, 2001. Although this one is like as Phyllidia ocellata, both of mantle and rhinophores were pale yellow and border line between yellow and white zone is quite obscure.

Is this P.ocellata or another species?

Length: 50mm
Depth: 15m
Water temperature: 19 degrees

Yasuhiro Shirai

yasuhiro@sea-slug.com

Shirai, Y., 2002 (Jan 14) Phyllidia ocellata from Japan (2). [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5459

Dear Yasuhiro,
As I said in answer to your other message, the colour variation found in this species seems to be very large but trying to separate the colour forms into a number of stable colour patterns which don't merge with others doesn't seem possible at present. Even Brunckhorst's species Phyllidia babai and Phyllidia willani appear to have 'forms' which are difficult to separate from forms of P. ocellata.

It is possible your animal has suffered considerable damage - perhaps been swallowed and regurgitated by a fish?
Best wishes,
Bill Rudman.

Rudman,W.B., 2002 (Jan 14). Comment on Phyllidia ocellata from Japan (2) by Yasuhiro Shirai. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5459

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