Category Archives: Roboastra

Roboastra Gracilis

_jks5060-2014-12-26-at-12-49-48-1

Small, beautiful, elegant  but dangerous. Mostly we (ai Alexander Schepens #divertothecore ) are finding this nudibranch along the islands of Racha Yai and Racha Noi in Phuket Thailand.

This relatively small nembrothid is growing to about 20-25mm in length. Characterised by the orange longitudinal lines which are sometimes quite onscure. These lines consist of a series of glandular pits which secrete a bright orange substance when disturbed.  This species is a member of a genus which hunts down and eats other opisthobranchs. The large oral tentacles (arrowed) are found in all members of Roboastra and are probably important in tracking down their prey, perhaps by following its mucus trail. Some variants have iso of orange rather yellow stripes._jks4382_jks4376_jks4369_jks4348_jks4346_jks4343

@All for a smile

#Allforasmile

Johnny

Advertisements