Halgerda okinawa Carlson & Hoff, 2000
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Halgerda okinawa Carlson & Hoff, 2000 is relatively large,
growing to at least 125 mm long. It has the typical mantle ridges and depressions of
most members of the genus Halgerda Bergh, 1880 . Apparently unique to this species, the yellow pigment
on the tubercles is not just a surface pigment but is incorporated in the tissue right
to the core of the tubercles. Halgerda okinawa looks like a coulour variant of
Halgerda willeyi, but this one has translucent
rhinophores and gills with black markings, Halgerda okinawa has orange
rhinophores with a black posterior midline of the rhinophore clubs. The gills are
translucent orange with black spots.
More information on Halgerda okinawa are on
Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2020), published 24 May 2020, Halgerda okinawa Carlson & Hoff, 2000