Onchidella celtica from Channel Ids

February 11, 2002
From: Nick Jouault


I have seen what I think is Onchidella celtica over the the last two weeks of July at Bigorne, Les Ecrehous, Jersey, Channel Islands. Is it Onchidella celtica, and is the other picture its spawn. Any info on this would be appreciated.

Nick

jouault@hotmail.com

Jouault, N., 2002 (Feb 11) Onchidella celtica from Channel Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4806

Dear Nick,
Yes I think this is Onchidella celtica. Although marine, and a 'slug' it is not an opisthobranch sea slug, but rather a pulmonate land slug, closely related to most land snails. I have a page on this group as they are quite often asked about. Concerning your second photo. I am pretty sure the egg mass of Onchidella celtica will be fairly typical of the group, consisting of a jelly-like ribbon with a string of tiny eggs embedded in it. The objects in your photos look like a group of isopod crustacea.
Best wishes,
Bill Rudman.

Rudman, W.B., 2002 (Feb 11). Comment on Onchidella celtica from Channel Ids by Nick Jouault. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4806

Factsheet

Marine Pulmonate slugs

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