Mollusks (bivalves and gastropods) are one of the most important marine resources in the diet of human beings due to their low fat content and high content of digestible protein. In this paper the distribution of mollusks used as food in several beaches of Colon Island was studied. The marine environments collected were Thalassia grasslands, mangroves, rocks, hard substrate, mud, muddy-sand, sand, mud and sandy-water (shallow and brackish).  Specimens from Istmito beach, were the most abundant (283 samples), while the most diversity was obtained from Paunch beach and Boca del Drago, with 10 species from each respectively. 75.5% of Pelecypods were found on the sand, 11.4% on mire and 8.9% on the hard substrate. There was ten species used for food. A 84.1% of individuals of gastropods found on hard substrate, 7.2% in Thalassia and 6.5% in rock. Nine of the species collected are used for food.  The little sand clam, Donax denticulatus Linnaeus 1758, was the most numerous species, with 270 individuals, of which 79.26% were found in Istmito beach. The study highlights the importance of conservation of mollusk settlement areas that serve to feed the inhabitants of the sector and source of income for artisanal fishermen.