Botany Bay, 9m, Sydney, New South wales, Australia. shell 17-19mm long. Lower right photo taken at angle to show spiral apex of shell. Photos: Alison Miller.
The external shell of Akera soluta is similar in shape and fragility to the unrelated cephalaspideans of the Haminoeidae, such as Atys cylindrica. Larger specimens often have a brownish tinge from the horny periostracal organic layer of the shell. There is a flattened groove at the top of each whorl, which can be seen in the lower right photo. From the aperture, a narrow slit (arrowed) runs back some distance along the groove, differentiating its shell from that of any haminoeid.
See the Shell of Sea Hares Page.
Return to Akera soluta page.
• Gmelin, J.F. (1791). In: Linnaeus, C., Systema Naturae, Ed.13. 1(6): 3021-4120.
Rudman, W.B., 2000 (September 3) Akera soluta - shell. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/akersolush