Elysia sp. 17
Order: SACOGLOSSA
Superfamily: ELYSIOIDEA
Family: Elysiidae
PHOTO
Old Woman Island, Mooloolaba, Sunshine Coast, 15 m, Queensland, Australia, Pacific Ocean, 27 December 2005, Subtidal. Length: 8 mm. Photographer: Gary Cobb.
Small elysiid with long tail, tubercles on parapodia and rhinophores and small red spots all over.
See Kathe Jensen's message #22159.
Authorship detailsRudman, W.B., 2009 (January 19) Elysia sp. 17 [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/elyssp17
Related messages
Re: Elysia verrucosa from sthn Queensland
January 19, 2009
From: Kathe R. Jensen
Concerning message #22101:
Dear Gary and Bill,
I am not comfortable about calling this species Elysia verrucosa. The lack of black spots is one thing, but the long thin tail and the relatively large and thick rhinophores are probably more important. E. verrucosa has almost no distinct tail - the posterior may be rounded or just barely pointed, but certainly not this long threadlike tail. Also the rhinophores of E. verrucosa are not that big relative to the head and body. E. verrucosa feeds on filamentous green algae, such as Cladophora and Chaetomorpha.
Best wishes,
Kathe
krjensen@snm.ku.dk
Jensen, K.R., 2009 (Jan 19) Re: Elysia verrucosa from sthn Queensland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22159Thanks Kathe,
I guess this your comments makes it Elysia sp. 17 on the Forum. It would certainly be interesting to know if Acetabularia was nearby. Also Gary, have you a photo of the parapodia partially open? It wouldbe interesting to see if the branching green digestive gland branches go right to the edge of the parapodia or not.
Best wishes,
Bill Rudman
Elysia verrucosa from sthn Queensland
January 16, 2009
From: Gary Cobb
Concerning message #10847:
Hi Bill and everyone!
May I present to you Elysia verrucosa from our area. This species has been found a few times. It has a very distinctive 'shuffle' with the front end of it's head and rhinophores. Very similar to Aeolidiella alba. I have included a closeup of the egg mass with it's extra-capsular yolk.
Locality: Old Woman Island, Mooloolaba, Sunshine Coast, 15 m, Queensland, Australia, Pacific Ocean, 27 December 2005, Subtidal. Length: 8 mm. Photographer: Gary Cobb.
Cheers
Gary Cobb
gary@nudibranch.com.au
Cobb, G.C., 2009 (Jan 16) Elysia verrucosa from sthn Queensland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22101
Note added 19 Jan 2009: probably not E. verrucosa - see Kathe Jensen's message #22159.
Dear Gary,
I have the feeling I have seen this species recently but I don't know where. It will be interesting to see whether Kathe Jensen considers this to be the same as her E. verrucosa. In the only photos we have of E. verrucosa black spots seem to dominate, but they appear to be absent in your animal. Does it grow much larger than 8 mm? Why I ask is that it reminds me of the relatively small species from the Caribbean which I have labelled Elysia cf timida. It would be nice to know what it ate. It would be interesting if its food was Acetabularia, which is the food of E. timida. There is a good photo of Acetabularia in Tom Turk's message about Cyerce [message #17518 - it is the umbrella-shaped algae in the upper left of the lower photo].
Interestingly Elysia sp. 8 [message #2148] has similar tubercles and an egg ribbon with extracapsular yoke, and Lindsay Warren mentions that it 'jerks' as it crawls along.
I'll tentatively put your message with E. verrucosa but it may not stay there long.
Best wishes,
Bill Rudman
