Juvenile Hexabranchus from nthn New South Wales

November 8, 2006
From: Roxanne Fea

Dear Bill,

We also found these two species in Hugo's Trench at Julian Rocks last week and are unable to ID them. Do you have any suggestions?

Locality: Hugo's Trench, Julian Rocks, 10m, NSW, Tasman, 22 August 2006, Sheer walls. Length: Nudi: 30mm, Other: 20mm. Photographer: Roxanne Fea.

Looking forward to your response;

Roxanne Fea & Jason Coombs

bungysheep@hotmail.com

Fea, R.I., 2006 (Nov 8) Juvenile Hexabranchus from nthn New South Wales. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17652

Dear Roxanne,

This animal is a juvenile, or at least subadult, Hexabranchus sanguineus. When they are small they are often mistaken for a species of Chromodoris. It's a bit hard to see but one way small Hexabranchus can be identified is the way the gills are each attached individually to the mantle, and there is no real gill pocket into which they can retract.

I have moved one of the species you mention into a separate message. Can you please remember to include only one species in a message - unless of course it is a message about multiple species.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Nov 8). Comment on Juvenile Hexabranchus from nthn New South Wales by Roxanne Fea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17652

Factsheet

Hexabranchus sanguineus

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