OKINAWAN
OPISTHOBRANCH OF THE WEEK
Bullina lineata (Gray, 1825) 19mm
Opisthobranch of the Week Data
Taxonomy:
- Order: CEPHALASPIDEA
- Family: Bullinidae
Frequency on Okinawa:
Collection Data:
- Individual Collection No: RFB #3154-C
- Location: Seragaki (26o 30.4'N, 127o 52.6'E) [all three
live-collected specimens from Seragaki]
- Date: 2 April, 1993 [23 May '91, 2 Apr '93, 15 Apr, 94]
- Depth: 5ft (1.5m) [5ft, 10ft, 10ft]
- Water temperature at collection depth: 68.9oF (20.5oC)
- Size: TL 19mm [19mm; 2 of the 3 indiv. had only the shell measured: 10mm, 12mm]
- Specimen deposited: California Academy of Sciences
[brackets indicate range for all Okinawa-collected specimens of the species]
Species Account:
Bullina lineata is considered to be rare on Okinawa as I have seen and collected a total of three living individuals and five empty shells over a period of many years on Okinawa. The featured individual was found crawling on top of a sand patch, amid mixed coral rubble and silty-sand during the daytime.
Copyright © 1999 Robert F. Bolland
Digitally manipulated photo
