These photos were taken in the waters off of Tulamben, Bali in September, 2022. Have looked thru several nudibranch ID books without finding an obvious match.
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What is the genus and species?
8 posts
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Perhaps Hypselodoris tryoni.
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Or Risbecia tryoni?
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2 hours ago, OCdiving Deb said:
Perhaps Hypselodoris tryoni.
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Hey- thanks. Yes, Hypselodoris tryoni may be the best match even though this particular one does not have the dark tan areas on it and the spots are larger and less numerous. Perhaps it is a juvenile.
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You can look at other observations on iNaturalist, some of them look like what you pictured and some of them does have larger dark areas and larger fewer spots, but it is a Hypselodoris tryoni
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Lovely nudi photos, but, with all due respect, I have my doubts about its being a Risbecia or Hypselodoris tryoni and have asked Mike Miller and Dr. Dave Behrens for their expert opinion, and will update with their replies.
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Dr. Dave Behrens' reply is:
"This is a juvenile so its hard to say. Yes, as Rudman has noted it could be Hypselodoris tryoni."
OCDiving Deb from Orange County go it right on the first try! Good work all around!
