BerthellinaBerthellina is a genus of sea slugs, marine gastropod molluscs in the family Pleurobranchidae.SpeciesSpecies within the genus Berthellina are:Berthellina barquini Ortea, 2014Berthellina circularis Berthellina citrina Berthellina cuvieri Berthellina delicata Berthellina edwardsii Berthellina granulata – lemon pleurobranchBerthellina ignis Alvim & Pimenta, 2015Berthellina ilisima Marcus & Marcus, 1967Berthellina magma Ortea, 2014Berthellina minor Berthellina oblonga Berthellina quadridens Berthellina utris Ortea, Moro & Caballer, 2014''[Species inquirenda]''Berthellina engeli Gardiner, 1936 -