Opisthobranch of the Week Data
Chromodoris leopardus is considered to be common on Okinawa, but only at a single collection site. The great majority of observed individuals were seen beneath Tengan Pier amid silty-sand and strewn oyster shell rubble.
The only other similar appearing chromodorid found here is Risbecia tryoni which is very similar in both morphology and pigmentation; the best field identification in discriminating between these two species is that with Chromodoris leopardus the dark notum spots are relatively incomplete and often quite irregular. Risbecia tryoni, on the other hand, has the notum spots appearing as consistent solids. In addition, the body profile of Risbecia spp. is high while that of the similar Chromodoris leopardus is relatively low. It should be noted that both species are commonly found simultaneous at the same collecting site.