Opisthobranch of the Week Data
Atsushi Ono considers Doto sp. 7 to be rare in the waters of the Keramas*. Atsushi reports seeing several individuals ranging between 3~7mm, none of which were collected. The above featured animal was found by Atsushi in three meters of water on a mooring rope in a fish preserve and this image is used here with Atsushi's kind permission.
Currently there are two described species of Doto having a black spot at the tip of each ceratal tubercle, D. bella & D. japonica, both are known from Japanese waters. In Atsushi's image above several spots are discernable at the tips of several ceratal tubercles. Mike Miller has an image of D. bella from Bali posted on his site and Jun Imamoto has images of D. japonica on his Sea Slug Site. Doto sp. 7 could well be D. japonica, but without comparative specimens I'll leave it as Doto sp. 7 for now.
I've not found Doto sp. 7 in the waters of Okinawa's main island as of the current date. I have however featured a series of described and unknown Doto species previously on these pages. These Doto species are:
Doto cf. racemosa Doto pita Doto sp. 1 Doto sp. 2 Doto sp. 3 Doto sp. 4 Doto sp. 5 Doto sp. 6 Doto sp. 7 The above featured animal Doto sp. 8 Doto sp. 9 Doto sp. 10 Doto sp. 11
* Keramas = the Kerama Islands Group, located 30 ~ 40 kilometers west of the Okinawa capitol, Naha.