|Will the real Hermissenda crassicornis please stand up|
Posted by Merry on September 26, 2016 at 13:39:25:|
One of our most striking nudibranchs has undergone a name change. What was once the familiar Hermissenda crassicornis is now classified as Hermissenda opalescens. (T. Lindsay, A. Valdés, 2016)
Historically, various nudibranch subjects from a large geographic range were classified as H. crassicornis. Recent molecular, morphological, and populations analyses revealed that there are actually three distinct species within the genus Hermissenda. One species, H. emurai, occurs in Japan and the Russian Far East.
The two other species that were differentiated by DNA studies are also different morphologically and inhabit separate geographic ranges for the most part.
Hermissenda crassicornis from British Columbia. Originally described in 1831 from Sitka, Alaska.
More photos of the real Hermissenda crassicornis can be found on Kevin Lee’s site.
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