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    Heterobranquios marinos (Gastropoda: Heterobranchia) de Colombia : lista actualizada basada en una revisión sistemática y de registros biológicos
    (Universidad EAFIT, 2024) Tamayo Gaviria, Evelyn; Londoño Mesa, Mario Hernán
    Marine heterobranchs, commonly called sea slugs, are gastropod molluscs with a great diversity of morphologies, which include shelled and non-shelled organisms. They play an active role in the food webs of the ecosystems they inhabit, due to their varied diet and symbiotic relationship with other species, which allows them to modify their distribution. Colombia has coasts on two oceans (Atlantic and Pacific with different geological and biological characteristics, which allows it to be divided into 18 marine Ecoregions. Although research on heterobranchs in the country has increased recently, the 3 species list for both coasts has not been updated since 2007; therefore, the current diversity of marine slugs is unknown. This research aims to update the list of marine heterobranchs (Gastropoda: Heterobranchia) of Colombia. The species search was done systematically, following PRISMA recommendations, and with a search of biological records in SiB Colombia, which were compared to obtain the most complete possible list of marine heterobranch species of Colombia. A total of 250 species, 125 genus and 60 families were found; of these species, 147 have been recorded for the Colombian Caribbean and 110 for the Colombian Pacific. In addition, 6 species were found to be shared by both coasts, with an Amphi-American distribution. The Sanquianga, Naya and Tumaco ecoregions should be prioritized in future research because of the few records known.