Akera silbo Ortea & Moro, 2009 (original description)
Armina maculata Rafinesque, 1814 (additional source)
Cyerce cristallina (Trinchese, 1881) (additional source)
Ercolania selva Ortea & Espinosa, 2001 (additional source)
Eubranchus vascoi Ortea, Caballer & Moro, 2002 (additional source)
Flabellina ischitana Y. Hirano & T. E. Thompson, 1990 accepted as Paraflabellina ischitana (Y. Hirano & T. E. Thompson, 1990) (additional source)
Hedylopsis suecica Odhner, 1937 accepted as Hedylopsis spiculifera (Kowalevsky, 1901) (additional source)
Pyrunculus hoernesi (Weinkauff, 1866) (additional source)
Trapania canaria Ortea & Moro, 2009 (original description)
Tritonia taliartensis Ortea & Moro, 2009 accepted as Candiella taliartensis (Ortea & Moro, 2009) (original description)

 Morphology

 for Hedylopsis suecica Odhner, 1937

Illustration of the living animal, avalaible in Ortea et al. (2009) [details]

 Morphology

 for Pyrunculus hoernesi (Weinkauff, 1866)

Illustration of the living animal, avalaible in Ortea et al. (2009) [details]

 Synonymy

 for Hedylopsis suecica Odhner, 1937

Ortea et al. (2009) consider this species valid [details]