Body elongated and fairly high. Cerata arranged in six or seven distinct clusters with a few single cerata at the posterior end. Rhinophores smooth, finger-shaped. The conical oral tentacles are as long as the rhinophores or slightly longer. Foot transversely grooved anteriorly and rounded, with stout, slightly produced corners.
body translucent white with more or less rhomboidal opaque white areas in the median dorsal line, outlined with orange pigment, which extends from the oral tentacles and rhinophores to the posterior end of the animal. Oral tentacles and rhinophores opaque white above, and orange below. Cerata with a subapical white band below the orange tip, each marked internally with a light brown diverticulum of the digestive gland.
common size :
it can reach up to 40 mm in length. The Mediterranean specimens measured from 3 to 14 mm.
The orange pattern on the notum, the smooth rhinophores and the short foot corners are characteristics of the species.
BIOLOGY / ECOLOGY
Found in South Africa associated with the sea anemone Anthothoe stimpsonii, upon which it feeds voraciously (Gosliner and Griffiths, 1981); produces spirally coiled egg masses. In the Mediterranean Schmekel and Portmann (1982) noted that this species feeds on sea anemones of the genus Sagartia.
in the Mediterranean, found under rocks and in rocky walls between 1 and 12 m.