Known only from Japan
Hachijo Island, Japan. 30mm long, depth: 10m. Photo: Shouichi Kato
Hamatani notes some differences in the shape of the shell, and considers the radular teeth of O. kabirensis to be somewhat wider than the teeth of O. viridis, but the main difference is in the shape and colour of the living animal. The background colour of O. kabirensis varies from a pale yellowish green to a dark green, but whatever the color there is always a darker region at the base of the parapodia which extends up as a triangular peak in the middle of the parapodia. There can also be secondary peaks at the front and back of the parapodia. The edge of this darker patch is lined with an even darker line. There can be some yellowish spots on the parapodia and there are usually a few scattered very elongate retractile papillae. In O. viridis the background colour is uniform, there being no darker green patch on the parapodia, and usually there are scattered blue spots.
• Hamatani, I. (1980) On the species of the genus Oxynoe Rafinesque, 1819 from Japan, inclusive of a new species (Opisthobranchia: Ascoglossa). Publications of the Seto Marine Biological Laboratory, 25(5-6): 349-360.
Rudman, W.B., 2002 (April 28) Oxynoe kabirensis Hamatani, 1980. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/oxynkabi