OKINAWAN
OPISTHOBRANCH OF THE WEEK
Chromodoris annae Bergh, 1877 (40mm)
Opisthobranch of the Week Data
Taxonomy:
- Order: NUDIBRANCHIA
- Suborder: Doridina
- Family: Chromodorididae
Frequency on Okinawa:
Collection Data:
- Individual Collection No: RFB #3322-C
- Location: Horseshoe Cliffs, Okinawa (26o30.0'N,
127o50.9'E) [all 3 from Horseshoe Cliffs]
- Date: 6 March, 1994 [9 Mar '92, 6 Mar '94 (2 indiv.)]
- Depth: 155ft (47.2m) [150ft, 155ft, 155ft]
- Water temperature at collection depth: Not recorded
- Size: TL 40mm [36mm, 40mm, 44mm]
- Specimen deposited: California Academy of Sciences
[brackets indicate range for all Okinawa-collected specimens of the species]
Species Account:
Chromodoris annae is considered to be very rare on Okinawa as I have seen and collected only three individuals over many years of diving here. The featured animal was one of two individuals collected at the same time on a red encrusting bryozoan colony at approximately 09:40am in an area of mixed sand and coral rubble. The
individual collected on 9 March, 1992, was found on a vertical rock wall at the reef edge which was covered with miscellaneous cnidarians, poriferans, bryozoans, and etc.
Page Date: 03 Nov '97
Page Modification Date: 25 Mar '00
Digitally manipulated photo
Copyright © 2000 Robert F. Bolland
