Cratena simba (Edmunds, 1970)

Images taken Mooloolah River, QLD, Australia and Lembeh, Indonesia

Cratena simba has a long elongate body, translucent white, with opaque white spots and patches, with thin curved orange lines. On the head there is an orange inverted V-shaped mark running forward from each rhinophore, and behind the rhinopores is an orange line running back from the base of each rhinophore and they curving in to meet in the midline.

The oral tentacles and rhinophores are simple and smooth, tapering to a rounded point. They are translucent with white spots.

The cerata are in five discrete clusters in symmetrical pairs on each side of the body, arranged in a single arch, while the cerata behind the heart are arranged in single sloping rows. They are conical and translucent white with brown digestive glands that are visible. There are white opaque vertical lines.