Arminidae  Arminidae is a family of sea slugs, marine gastropod mollusks in the superfamily Arminoidea. The family Arminidae is classified within the clade Cladobranchia, itself belonging to the clade Nudibranchia (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has been renamed several times. It was originally named by d'Orbigny in 1841 as Diphyllidiidae, by H. Adams and A. Adams as Pleurophyllidiidae in 1854, by Bergh as Pleuroleuridae in 1874, by Verrill and Emerton as Heterodorididae in 1882, by P. Fischer as Dermatobranchidae in 1883 and as Atthilidae by Bergh in 1899. The name Arminidae is now in prevailing usage. The type genus is "Armina" Rafinesque, 1814  Genera in the family Arminidae include:   Two readings about "Heterodoris":