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Description
Trapania is a genus of small dorid nudibranchs in the family Goniodorididae. According to the Sea Slug Forum they feed on entoprocts (kamptozoans), tiny stalked animals that cluster on certain sponges, rather than on the sponges themselves. For example, T. hispalensis is known from the Strait of Gibraltar area and southern Portugal, at about 15 m depth.
Identification
The key feature of the genus is two pairs of recurved, tapering lateral papillae: one pair beside the rhinophores and one pair just behind the gills. Prominent oral tentacles project from the front of the head. The body is often translucent white, with yellow or orange on the tips of the papillae, oral tentacles, rhinophores, gills and tail (for example in T. hispalensis).
Species in this genus (3)
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