Phyllidiopsis cardinalis Bergh, 1876 (40mm)
OPISTHOBRANCH OF THE WEEK
Opisthobranch of the Week Data
Frequency on Okinawa:
- Order: NUDIBRANCHIA
- Suborder: Doridina
- Family: Phyllidiidae
[brackets indicate range for all Okinawa-collected specimens of the species]
- Individual Collection No: RFB #3263-A
- Location: Horseshoe Cliffs, Okinawa (26o30.0'N, 127o50.9'E) [Horseshoe Cliffs, Seragaki]
- Date: 6 June, 1994 [24 Aug '87, 7 Jan '91, 13 May '92, 31 May '92, 6 Jun '94, 12 May '95]
- Depth: 200ft (61m) [10ft, 10ft, 20ft, 135ft, 140ft, 200ft]
- Water temperature at collection depth: 69.1oF (20.6oC)
- Size: TL 40mm [36mm, 40mm, 49mm, 55mm, 63mm, 74mm]
- Specimen deposited: RFB Personal Research Collection (different individuals of the species deposited at Cal Acad Sci)
Although I've only collected 6 specimens to date I consider Phyllidiopsis cardinalis to be uncommon, in lieu of being rare, here on Okinawa. A half dozen others have been photographed and perhaps an additional ten or so have been seen over a period of many years.
Phyllidiopsis cardinalis is quite unlike any other described species of the family; the multicolored dorsum with prominent tubercles as well as the bright yellow foot make a field determination of this animal quite easy.
The featured animal was found on the undersurface of a slab of coral rubble in an area of mixed sand and strewn coral rubble during the daytime.
Page Date: 18 May '98
Page Modification Date: 27 Mar '00
Digitally manipulated photo
Copyright © 2000 Robert F. Bolland