Hypselodoris rudmani? from Sulawesi

February 1, 2000
From: Lindsay Warren

Dear Bill
Here is a Hypselodoris or Chromodoris found in the Tukang Besi Islands of SE Sulawesi, Indonesia. (Operation Wallacea) It looks similar to other species in some of the books I have but gills and rhinophores do not match.

This was also found by Graham Abbott in September in 4-5 ft of water on a silty bottom (as shown in the picture) in a channel where the tide flows in and out quite swiftly - it is predominantly a sea grass area but there are isolated coral heads and patches of sponges. L: 8 mm. Photo: Lindsay Warren.

Any clues?
All the best
Lindsay Warren

100014.2112@compuserve.co

Warren, L. , 2000 (Feb 1) Hypselodoris rudmani? from Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1824

Dear Lindsay,
If this photo had been sent to me from the east coast of South Africa I would have had no hesitation in identifying it as Hypselodoris rudmani. It is almost identical to photo 130 in Gosliner, 1987, except that the blue spots in your photo are larger and quite diffuse around the edges. However at 8mm I suspect your animal was a juvenile. If you look at my photos of the similarly coloured Hypselodoris infucata you will see that in juveniles the blue and yellow spots are proportionally very large, becoming much smaller in adults.

My feeling is that it is Hypselodoris rudmani. If so, your find increases its known distribution from one side of the Indian Ocean to the other.

An interesting find,
Bill Rudman.

Rudman, W.B., 2000 (Feb 1). Comment on Hypselodoris rudmani? from Sulawesi by Lindsay Warren . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1824

Factsheet

Hypselodoris rudmani

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