OKINAWAN
OPISTHOBRANCH OF THE WEEK

Dermatobranchus sp. 1 (16mm)

Opisthobranch of the Week Data

Taxonomy:

Frequency on Okinawa: Collection Data:
[brackets indicate range for all Okinawa-collected specimens of the species]


Species Account:

        Dermatobranchus sp. 1 is considered to be very rare on Okinawa's main island as I have collected a total of three individuals; all three of the specimens were collected at the Tengan Pier dive site, from beneath the pier and its relatively large supporting concrete pilings. The silty-sand bottom area from which the specimens were collected was composed of large amounts of strewn oyster rubble, numerous sponges, and miscellaneous other invertebrates which had been dislodged from the pier pilings above. All three of the specimens were found crawling on the surface of the silty-sand substrate during a mid-morning SCUBA excursion.

        This unknown arminid is one of twelve described members of the genus as well as several unknown (undescribed?) species currently known from waters of Okinawa's main island. These described species are:

  • Dermatobranchus albus
  • D. cymatilis
  • D. dendronephthyphagus
  • D. diagonalis
  • D. fasciatus
  • D. fortunatus
  • D. funiculus
  • D. gonatophora
  • D. oculus
  • D. ornatus
  • D. primus
  • D. rodmani

  • Page Date: 23 Dec '02
    Page Modification Date: 18 Feb '13
    Digitally manipulated photo
    Copyright © 2013 Robert F. Bolland