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Objective. Identify the prevalence of internal and external parasites in ex situ snakes at the Fundación Botánica y Zoológica de Barranquilla “Barranquilla Zoo”. Materials and methods. Stool samples and ectoparasites of 2 colubrids (Leptophis ahaetulla and Spilotes pullatus), 2 diapsids (Oxybelys aeneus and Thamnodynastes paraguanae) and 13 boids (9 individuals of Boa constrictor, 2 of Epicrates maurus and 2 Eunectes murinus) were analyzed using flotation method in saturated sugar solution and direct observation. Results. The results showed that 65% (11/17) of the population was positive to the presence of parasites. In relation to the positive specimens, 91% (10/11) belong to the Boidae family, presenting mostly nematodes, in the dipsadid’s samples mainly protozoans were observed and the colubrid´s samples were negative. Regarding ectoparasites, 2 species of ticks (Amblyomma dissimile and Ornothodoros turicata) were found in specimens of Boa constrictor, Epicrates maurus and Spilotes pullatus. Conclusions. The identification of parasitic forms in this paper represents a contribution to the knowledge of parasites in snakes ex situ in Colombia. It provides information to develop prophylactic measures against these pathological agents and also allows comparing the data about the parasitic forms found with other researches in the wild and in captivity. [ABSTRACT FROM AUTHOR]