Peruvian nudibranchs (Mollusca, Gastropoda, Heterobranchia): an updated literature review-based list of species Author Grandez, Alessandra https://orcid.org/0000-0002-0142-9357 Carrera de Biologia Marina, Universidad Cientifica del Sur, Lima, Peru Author Ampuero, Andre https://orcid.org/0000-0001-6929-5423 Carrera de Biologia Marina, Universidad Cientifica del Sur, Lima, Peru Author Barahona, Sergio P. https://orcid.org/0000-0002-0136-7205 Carrera de Biologia Marina, Universidad Cientifica del Sur, Lima, Peru srgbarahona89@gmail.com text ZooKeys 2023 2023-08-23 1176 117 163 http://dx.doi.org/10.3897/zookeys.1176.103167 journal article http://dx.doi.org/10.3897/zookeys.1176.103167 1313-2970-1176-117 DE7EC71CBDDE4A9AB958F1B99633D11D 1E23A7B963DD5B4EB12D399166AAB7C6 Okenia luna Millen, Schroedl , Vargas & Indacochea, 1994 Peruvian specimen photographs: Fig. 14 Habitat. Benthic. Figure 14. Okenia luna , courtesy of Yuri Hooker. Depth. 4-20 m ( Schroedl 1996a ). Type material. Holotype CASIZ 089293-Coliumo Bay ( 36°32'S , 73°57'W ), north of Concepcion , Chile. Distribution. From Ancon Bay (Lima, Peru) to Coliumo Bay (Chile). Sampling/reporting sites. In Peru, it was collected in Ancon Bay (Lima, 11°47'S) ( Millen et al. 1994 ). In Chile, it was collected in Iquique (22°13'S) ( Fischer 2006 ) and Coliumo Bay (36°32'S) ( Schroedl 2003 ). Remarks. First record of the genus Okenia reported in the Southeast Pacific ( Millen et al. 1994 ). It is distributed in Peruvian and Chilean waters. Superfamily Phyllidioidea Rafinesque, 1814 Family Dendrodorididae O'Donoghue , 1924 (1864)