Re: Cumanotus vs Cuthona divae

September 10, 2007
From: Jeff Goddard

Concerning message #20483:

Hi Bill and Dave,

I have been enjoying the spectacular images of Cumanotus sp. And Cuthona divae by Kevin Lee and Jackie Hildering and just wanted to confirm that the egg masses in the middle two images of Kevin's message #20483 and those in Jackie's message #20145 were indeed laid by Cuthona divae, as confirmed by my previous observations in the laboratory of egg-laying by specimens collected on Hydractinia from Cape Arago, Oregon. The pink rosettes, with their vertically looped egg string, are distinctive among NE Pacific species of Cuthona.

Additional observations would have been necessary to identify the adult slugs in Jackie's message #20138 and determine if they laid the egg masses in the associated image, although the adults do look like Cuthona concinna to me.

Locality: Cape Arago, Intertidal, Oregon, USA, Paciific Ocean, June 1984, Rocky shore. Length: 15 mm. Photographer: Jeff Goddard.

Best wishes,
Jeff

goddard@lifesci.ucsb.edu

Goddard, J.H.R., 2007 (Sep 10) Re: Cumanotus vs Cuthona divae. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20589

Thanks Jeff,

Best wishes,
Bill and Dave

Behrens, D.W., 2007 (Sep 10). Comment on Re: Cumanotus vs Cuthona divae by Jeff Goddard. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20589

Factsheet

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