Hypselodoris bollandi Gosliner & Johnson, 1999
This weeks nudibranch special is the second presented here from Gosliner and Johnson's recent monograph on the genus Hypselodoris from the Indo-Pacific. It is Hypselodoris bollandi, named in recognition of Dr. Robert F. Bolland, University of Maryland Asian Division, Okinawa. Bob, webmaster of The Okinawa Slug Site has been an active and generous contributor to opisthobranch biology, sharing his many discoveries and observations in the waters of Okinawa with scientists at the California Academy of Sciences. Bob was first recognized by the naming of Chromodoris roboi Gosliner and Behrens, 1998, for which the authors combined "ro" from Robert, with "bo" from Bolland to create the name. In Nudibranch of the Week #112, I explain other certain similarities between Bob and the fictitious movie personality, Robo Cop.
Featured recently as nudi of the week on Bob's Okinawa Site Hypselodoris bollandi is a handsome beast known from only two localities, Okinawa and the Batangas region of Luzon, Philippine Islands. And, it's type locality is? - you guessed it - that rapidly becoming famous, little reef in the middle of nowhere - Bus Stop. Let's see, this makes four, the number of species who hale little Bus Stop Reef as their type localities. See also: Chromodoris hintuanensis, Taringa halgerda , and Hypselodoris reidi . A typical, long slender bodied Hypselodorid, the body is opaque white with a series of blue-black patterns giving the appearance of indentations on the edge of the notum. This pattern is broken up by clearings, each containing a yellow-gold spot. These spots occur over the entire notum and foot. The rhinophores and gills are white highlighted with burgundy red. A relatively large species, averaging 37-43 mm in length, it has been observed at depths from30 to 115 feet. The Batangas specimens were collected by Bruce Baker of Tucson, Arizona.
Bob - on behalf of Terry and Rebecca, and all of us in the sea slug
scientists union - THANK YOU!
Terrence M. Gosliner and Rebecca F. Johnson, 1999. Phylogeny of
Hyselodoris (Nudibranchia: Chromodorididae) with a review of the
monophyletic clade of Indo-Pacific species, including descriptions of
twelve new species.
Zool. Journ. Linnean Soc. 125:1-114, with 62 figures.
David W. Behrens
Pacific Coast Nudibranchs
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