Elysia species ID help

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Lrood
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Elysia species ID help - Saturday, August 30, 2014 3:53 PM
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I bought a couple of lettuce nudis today, and wonder if someone can help me ID the species. Based on reviewing the sea slug forum, I think they are either crispata or clarki. Any help would be appreciated.


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Ken
Lrood
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Re:Elysia species ID help - Saturday, August 30, 2014 3:56 PM
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Pic of the other one.
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Ken
Lrood
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Re:Elysia species ID help - Saturday, August 30, 2014 7:36 PM
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Looking closer at these today makes me think they are clarki. The parapodia leave the dorsal body visible. Apparently with crispata, the parapodia fuse dorsally.
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Ken
Lrood
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Re:Elysia species ID help - Sunday, August 31, 2014 12:05 PM
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Ok, so now I'm back to thinking they are crispata. The parapodia do seem to be fused anteriorly, and the foot has no spots. Here is a pic of both on some chaeto.

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Ken
waldend
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Re:Elysia species ID help - Sunday, August 31, 2014 3:33 PM
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I can't be any help but this will be a neat first.
mPedersen
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Re:Elysia species ID help - Monday, September 1, 2014 9:51 PM
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As I read the descriptions for the two species on Sea Slug forums, it would seem that the ventral portion of the foot is where you might see a difference; so you might be right. 
 
Check this post for further info - http://www.seaslugforum.net/find/16728
 
I'd want more images to be sure, but I'm inclined to lean towards E. crispata as well for the moment. (actually, I looked back up at the first images...yup, I really think E. crispata is the correct ID based on the information we have).
Lrood
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Re:Elysia species ID help - Tuesday, September 2, 2014 4:52 PM
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Matt, thanks for that link. It nicely reviews the differences in the three species.
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Ken