Description

"Description:
The length of the body may reach 11 mm; it is coloured greenish white, with the digestive gland showing green or brownish through the translucent skin, especially within the cerata, which are arranged in a latero-dorsal pattern of up to eight transverse rows. Each ceras is smooth and rounded at the tip. The anal opening is antero-dorsal, just behind the head. The rhinophores are inrolled.

Habitat:
This species lives and feeds upon the algae Codium tomentosum andBryopsis plumosa . All records of P. dendritica have come from shallow water, with rare captures on the lower shore.

Distribution:
Distributed in NW Europe from Norway to the Mediterranean Sea (Distr. P. dendritica), New England to the Caribbean Sea; Japan; Australia; California."

Marine Species of the North Sea: http://www.species-identification.org/species.php?species_group=mollusca&selected=beschrijving&menuentry=soorten&id=905