Belongs within: Doridina. The Dorididae are a group of nudibranchs united by the presence of small and blunt oral tentacles at both sides of the mouth area, and a smooth labial cuticle (Valdés 2002). Dorididae [Archidorididae, Doridea, Doridia, Doridigitatidae] | i. s.: Petelodoris Bergh 1881V02 | Peronodoris Bergh 1904V02 |–Aldisa Bergh 1878 [Aldisidae, Aldisinae]V02 |… Continue reading Dorididae


Belongs within: Doridina. The Phyllidioidea are a group of nudibranchs characterised by the absence of radula, together with a number of other features representing adaptations for suctorial feeding on sponges. Synapomorphies (from Valdés 2002): Mouth area reduced to a pore, mouth opening moved posteriorly, labial cuticle absent, radula absent, salivary glands absent, oral glands present,… Continue reading Phyllidioidea


Belongs within: Doridina.Contains: Glossodoris, Chromodoris, Hypselodoris. The Chromodorididae are a group of usually brightly-coloured nudibranchs that feed on sponges. Stunning sea slugs Published 4 March 2014 The name ‘sea slug’ does not sound immediately enticing to those not in the know, but in fact they include some of the world’s most fabulous animals. The Chromodorididae… Continue reading Chromodorididae


Belongs within: Doridina.Contains: Thordisa. The Discodorididae are a group of nudibranchs united by the presence of a notched labium, small conical oral tentacles, two differentiated portions in the prostate, and two portions in the blood gland (Valdés 2002). Discodorididae [Arginidae, Baptodorididae, Discodoridinae, Platydorididae] |–Otinodoris White 1948V02 | `–*O. winckworthi White 1948V02 |–Sebadoris Marcus & Marcus… Continue reading Discodorididae


Belongs within: Chromodorididae. Glossodoris is a genus of nudibranchs in which the mantle edge is developed into a series of permanent or semi-permanent folds (Rudman 1984). Characters (from Rudman 1984): Body relatively high; mantle edge (sometimes very reduced) thrown into a series of semi-permanent or permanent folds. Mantle glands arranged submarginally around mantle and open… Continue reading Glossodoris


Belongs within: Heterobranchia.Contains: Doridina, Aeolidacea, Dendronotina, Arminina. The Ringipleura are a clade of marine molluscs supported by molecular data including the nudibranch sea slugs and related taxa. The basal Ringiculidae retain an external shell whereas members of the clade Nudipleura are shell-less. Ringiculid shells are solid and moderately high-spired with heavy spiral sculpture, a thick… Continue reading Ringipleura


Belongs within: Aeolidacea. The Facelinidae are a group of elongate, slender nudibranchs characterised by a uniseriate radula with teeth bearing a prominent cusp and lateral denticles. <==Facelinidae [Facelinacea] |–Herviella Baba 1949 [Herviellidae, Herviellinae]BR05 | `–*H. yatsui (Baba 1930) [=Cratena yatsui]BR17 |–Pteraeolidia Bergh 1875 [Pteraeolidiidae, Pteraeolidiinae, Pteraeolidinae]BR05 | |–*P. semperi (Bergh 1870) [=Flabellina semperi]BR17 | `–P.… Continue reading Facelinidae


Belongs within: Aeolidacea. The Aeolidiidae are a group of nudibranchs characterised by a uniseriate radula with pectinate teeth, and a diet of sea anemones. Food that puts more than just hairs on your chest Published 1 December 2008 Nudibranchs or sea slugs are widely recognised to include some of the most spectacularly ornate animals in… Continue reading Aeolidiidae


Belongs within: Ringipleura.Contains: Fionoidea, Paracoryphellidae, Flabellinidae, Coryphellidae, Facelinidae, Aeolidiidae. The Aeolidacea are a group of sea slugs characterised by the presence of dorsal cerata bearing a single cnidosac (Korshunova et al. 2017). The cnidosacs function to contain nematocysts sequestered from the cnidarians on which the sea slugs feed, allowing their use in the nudibranch’s own… Continue reading Aeolidacea


Belongs within: Doridina.Contains: Polyceridae. The Phanerobranchia are a group of dorid nudibranchs characterised by the inability to retract the gill within a cavity. As this is a plesiomorphic character, the monophyly of the group is uncertain (Valdés 2002). Members of the Onchidoridoidea have a suctorial buccal apparatus whereas the buccal apparatus of Polyceroidea is not… Continue reading Phanerobranchia