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Description
Tritonia is a genus of nudibranchs in the suborder Cladobranchia (Dendronotina group), family Tritoniidae. Members of the family feed on octocorals such as soft corals, sea pens and gorgonians, and are usually camouflaged against their prey. The genus includes small species such as T. striata from the western Mediterranean, which feeds on Paralcyonium elegans, and also T. hombergii from northwestern Europe, which reaches about 20 cm and eats soft corals such as Alcyonium digitatum.
Identification
The gills are arranged in clusters along the edge of the mantle on each side, and the head has an oral veil with papillae. The rhinophores are branched. In T. striata the body is translucent white, under 5 mm, with three dark longitudinal lines, 4 to 6 gill clusters on each side and a ridge on the mantle between the clusters. T. hombergii is large and mottled brown, yellow or orange, and its mantle has warty bumps.
Species in this genus (2)
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