Rachel Lebatard
Réunion, Saint Pierre lagon, less 1 m, 18 January 2009, size : 100 mm
During the night, this specimen swin just under the surface of the water...
The animal can swim if disturbed by slow dorso-ventral flexions of the hole body. Swimming does not involve undulations of the mantle margin as Hexabranchus sanguineus
. |