Heterobranchia Burmeister, 1837

Nudibranchia Cuvier, 1817 - Cladobranchia

Family: Coryphellidae Bergh, 1889

   

Family: Flabellinidae Bergh, 1889

Calmella gaditana (Cervera, García-Gómez and García, 1987)

Family: Samlidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017

Family: Piseinotecidae Edmunds, 1970

   

Family: Aeolidiidae Gray, 1827

Family: Facelinidae Bergh, 1889

Family: Eubranchidae Odhner, 1934

   

Family: Fionidae Gray, 1857

Family: Embletoniidae Pruvot-Fol, 1954

   

Embletonia pulchra (Alder & Hancock, 1844)

   

Family: Trinchesiidae F. Nordsieck, 1972