Ascobulla japonica (Hamatani,1969)8mm(shell)
Photo by Atsushi Ono

Opisthobranch of the Week Data


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

Species Account:

        Ascobulla japonica is considered to be very rare in Okinawan waters; I've not personally seen this attractive little volvatellid here in the waters of Okinawa's main island and Atsushi mentions (pers. comm.) seeing only the above single individual in the Keramas.* Atsushi mentions the animal had burrowed approximately 3cm into the sand and was found associated with a runner of Caulerpa serrulata (var. serrulata, f. lata).

        This same animal is seen in Atsushi Ono's recent book (2004, p. 44).

Literature Cited:

        * Keramas = the Kerama Islands Group, located 30 ~ 40 kilometers west of the Okinawa capitol, Naha.

Page Date: 22 Nov '04
Page Modification Date: 22 Nov '04
Digitally manipulated photo (image has been horizontally flipped)
Copyright © 2004 Robert F. Bolland