Chromodoris conchyliata from Burma

June 22, 2005
From: Sergey Parinov

Dear Bill,
This is Chromodoris conchyliata from Mergui Archipelago.

Locality:  South Mergui, tiny island/pinnacle close to Thai border, Myanmar [Burma], Indian Ocean, Andaman Sea. February 2004.Upper right, lower left: Depth: 20-25 meters. Length: 3-5 cm. reef slope. Lower right: Depth: 28 meters, Length: 1 cm. flat bottom ~20 meters away from the rocks. Photos: Sergey Parinov.

Sergey Parinov

Sergey Parinov, 2005 (Jun 22) Chromodoris conchyliata from Burma. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Sergey,
This species seems to be one of group showing a distribution pattern from east Africa right around to Thailand. Another interesting point is the blue sponge both animals are on, although not so clear in the lower photo. I checked earlier messages and found one [message #2203] with a similar blue patch. Not totally convincing evidence, but it matches the similarly coloured C. geometrica which feeds on the bluish Aplysilla violacea. In that species the underside of the anterior mantle is a bright deep purple. In C. conchyliata the underside of the anterior mantle is also coloured purple, but there is often an orange or reddish band along the edge, which can be seen in your upper photo.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Jun 22). Comment on Chromodoris conchyliata from Burma by Sergey Parinov. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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