Pattyclaya brycei
Jensen & Wells, 1990
Order: SACOGLOSSA
Superfamily: ELYSIOIDEA
Family: Elysiidae
DISTRIBUTION
Known from SW Western Australia as far north as Dongara, approx 400k north of Perth.
PHOTO
Dongara, 6.0 metres, Western Australia, Australia, Indian Ocean, 15 March 2006, Subtidal limestone reef, SCUBA. Length: Approx. 3 cm. Photographer: Corey Whisson/Western Australian Museum.
Green elysiid with reddish brown mottling in the neck region and scattered white specks, caused by short white papillae on the body and external side of the parapodia. Microscopic black specks are also present. The rhinophores are relatively short and yellowish brown in colour. The most distinctive feature of this species is the presence of 50 or more large gill-like lamellae, on the inside of each parapodia. They sit at right angles to the parapodia edge and run from the edge of the parapodia to about halfway to the dorsal midline of the body.
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Jensen, K.R. & Wells, F.E. (1990) Sacoglossa (= Ascoglossa) (Mollusca, Opisthobranchia) from southern Western Australia. [In] Wells, F.E., Walker, D.I., Kirkman, H. & Lethbridge, R. Proceedings of the Third International Marine Biological Workshop: The Marine Flora and Fauna of Albany, Western Australia. Western Australian Museum, Perth, Vol. 1, 297-331.
Rudman, W.B., 2006 (April 19) Pattyclaya brycei Jensen & Wells, 1990. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/pattbryc
Related messages
Re: Pattyclaya brycei - Range Extension
April 25, 2006
From: Corey Whisson
Concerning message #16395:
Dear Bill,
The demise of Pattyclaya (and three other genera - Tridachiella; Tridachia and Elysiella) to Elysia was sourced from the following publication:
Gosliner, T.M. 1995. The genus Thuridilla (Opisthobranchia: Elysiidae) from the tropical Indo-Pacific, with a revision of the phylogeny and systematics of the Elysiidae. Proceedings of the California Academy of Sciences, 49(19): 1-54.
I hope this, and the shot of the gill-like lamellae, helps.
Cheers
Corey
corey.whisson@museum.wa.gov.au
Whisson, C.S., 2006 (Apr 25) Re: Pattyclaya brycei - Range Extension. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16418Dear Corey,
Thanks for your reply, and thanks for the photo of the transverse lamellae. Fortunately Clay Carlson & Patty Jo Hoff have sent photos of P. arena for comparison.
After asking about the demise of Pattyclaya I remembered Terry Gosliner's paper. I understand there is a paper in press concerning a sacoglossan phylogeny based on DNA studies so I think I will wait until that is published before dispensing with Pattyclaya. If P. brycei and P. arena are in fact distinct species, it seems to me that the remarkable development of transverse lamellae on the inside of the parapodial flaps in both species, is a new evolutionary adventure within the Elysiidae [Plakobranchidae] and deserves recognition. We need to remember that cladistic analyses are not 'the truth', they are just hypotheses, and dare I say it, sometimes they may need more work.
Best wishes,
Bill Rudman
Pattaclaya brycei - Range Extension
April 20, 2006
From: Corey Whisson
Dear Bill,
On a recent trip to Dongara we collected a specimen of Elysia brycei. This message seems to be the first record of the species on the Forum. It also extends the range of the species. The known range extension of this species is from Albany northward to Cervantes along the Western Australian coast. This record extends the range of this species approximately 140 kilometres northward.
Locality: Dongara, 6.0 metres, Western Australia, Australia, Indian Ocean, 15 March 2006, Subtidal limestone reef, SCUBA. Length: Approx. 3 cm. Photographer: Corey Whisson/Western Australian Museum.
I hope forum members find the information useful.
Cheers
Corey
corey.whisson@museum.wa.gov.au
Whisson, C.S., 2006 (Apr 20) Pattaclaya brycei - Range Extension. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16395
Dear Corey,
Thanks for this valuable additon to the Forum. I don't suppose you have a photo showing the gill-like lamellae on the inside of the parapodia? I seeyo place this species in Elysia. Can you give me a reference to the demise of Pattyclaya?
Best wishes,
Bill Rudman
