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 Phidiana lottini (Lesson, 1831) Peruvian specimen photographs: Fig. 5 Habitat. Benthic. Figure 5. Phidiana lottini , courtesy of Yuri Hooker. Depth. 0-15 m ( Schroedl and Hooker 2014 ). Type material. Not available. Distribution. From Puerto Malabrigo (La Libertad, Peru, 07°42'S) ( Flores 2014 ) to Melinka (Guaitecas islands, Chilean fjord region, 43°52'S) ( Schroedl 2003 ). Sampling/reporting sites. In Peru, it was initially reported in Callao as Phidiana inca by d'Orbigny , (1835-1846) and Dall (1909) . It was also reported in Isla Santa (Ancash, 09°01'S), Ancon (Lima, 11°47'S), San Bartolo (12°22'S), Pucusana (Lima, 12°25'S) and San Juan de Marcona (Ica, 15°21′S) ( Uribe et al. 2013 ). Schroedl and Hooker (2014) also collected individuals in Pucusana (12°25'S), Paracas (13°48'S) and La Punta (Callao). The report by Flores (2014) in Puerto Malabrigo (La Libertad, 07°42'S) revealed the northernmost locality of this species distribution. Valdivia-Chavez et al. (2020) presented a recent report of this species in Arequipa (15-17°S). Other reports (occurrences) for this species in the Peruvian coast are Playa Tartacay (El Paraiso , Huaura, Lima, 11°13'44.9"S) ( Zanabria 2020e ), Isla Chuncho (Pucusana, Lima, 12°28'S) ( Guzman 2018a ; Cuba 2019 ) and Puerto General San Martin (Paracas Bay, Pisco, Ica, 13°48'37.3"S) ( Zanabria 2020d ). In Chile, it was reported in Playa Brava (Caldera, Atacama, 27°03'S), Calderilla (Atacama, 27°05'S) ( Araya and Valdes 2016 ), Punta Blanca (Arica, 18°29'S), Comau Fjord (42°15'S), and Melinka (Guaitecas islands, Chilean fjord region, 43°52'S) ( Schroedl 2003 ). Other reports (occurrences) for this species in the Chilean coast include Chascos Bay ( Copiapo , Atacama, 27°40'S), Reserva Nacional Pingueino de Humboldt (Huasco, Atacama, 29°01'S), Coquimbo (29°58'S), Valparaiso (33°21'S), Concepcion (36°45'S), Valdivia (39°57'S), and Chiloe (41°53'S) ( iNaturalist 2023a ). Remarks. Initially designated as Phidiana inca ( d'Orbigny , 1837) until research by Schroedl (1997) who considered it conspecific with Eolidia lottini Lesson, 1831, proposing Phidiana lottini as a valid name.