Re: Doto amyra from British Columbia

January 25, 2006
From: Jeff Goddard

Concerning message #13986:

Hi Bill, Dave,
The two specimens of Doto pictured in Marli Wakeling's recent messages [#13986, #13987] both fit what I call Doto amyra, and the same applies to the specimens in her previous messages of  [#6487] and [#13717], as well as the 9 August 2004 contribution by Bruce Wight's [#7705 ].

As I reported in my 1996 paper, the body of Doto amyra is light colored and only rarely possesses a light scattering of dark pigment. Its ceratal cores, however, can vary from pale yellow to orange-brown or pink-brown. Moreover, Doto amyra is known to feed on both thecate and athecate hydroids (in the typical Doto manner by rasping through the stolons and stalks and pumping out the enclosed tissues).

By contrast, the three light colored specimens with pink cerata cores in Sean Kearney's message [#12493] do fit what I called Doto form A in my 1996 paper. Their cerata tubercles typically stand out against the bright colored cores, and this form has small planktotrophic larvae (in contrast to the much larger lecithotrophic larvae of Doto amyra). Form A is more common in California, especially southern California, and I have found it only as far north as Coos Bay, Oregon.

I will try to put together for you a set of photos of the forms I referred to in my 1996 paper.

Best wishes,
Jeff

goddard@lifesci.ucsb.edu

Goddard, J.H.R., 2006 (Jan 25) Re: Doto amyra from British Columbia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15639

Dear Jeff,
I look forward to some photos
Best wishes,
Bill Rudman

Factsheet

Doto amyra

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