Updated list and new records of sea slugs (Gastropoda: Heterobranchia) in the Lobos-Tuxpan Reef System, Mexico

Background: In the Lobos-Tuxpan Reef System Protected Natural Area (LTRS), Mexico, presence of sea slugs has been documented in several scientific investigations, but information is limited, scattered and out date. Goals: To elaborate an updated list species with new field data compilation previously reported literature for LTRS. Methods: Samplings were carried Lobos reef (during November 2014 2017), Enmedio (September 2016, April 2017, June 2018, July 2019) Tuxpan (June October 2017). The was complemented records Results: comprises up to 27 slugs. most representative groups are: Order Cephalaspidea nine species, Aplysiida seven Superorder Sacoglossa species. distribution Cyerce habanensis Elysia cornigera extends north Veracruz Lobiger souverbii constitutes a record Southwestern Gulf Mexico Corridor. Conclusions: Our study favorably increases knowledge This could support strategies conservation protection management plans this protect natural area.