METACERCARIAE OF TREMATODES OF FISHES FROM CENOTES (EQUALS SINKHOLES)OF THE YUCATAN PENINSULA, MEXICO

The paper presents a survey of the metacercariae of trematodes found i n 581 fishes of 15 species from 39 cenotes (sinkholes) of the Yucatan Peninsula, southeastern Mexico. The following 21 species were found: E chinochasmus sp. 1, Echinochasmus sp. 2, Echinostomatinae gen, sp. (fa mily Echinostomatidae), Stumkardiella minirna (Stunkard, 1938), Atroph ecaecum (?) astorquii (Watson, 1976), Peluezia loossi (Perez Vigueras, 1957) (Acanthostomidae); Ascocotyle (Ascocotyle) tenuicollis Price, 1 935, Ascocotyle (Ascototyle) sp. 1, Ascocotyle (Phugicola) dininuta (S tunkard et Haviland, 1924), Ascocotyle (Phagicola) sp. 2 (= Phagicola angrense Travassos, 1916 of Salgado-Maldonado and Aguirre-Macedo, 1991 ), Ascocotyle (Phagicola) sp. 3 (Heterophyidae); Cladocystis trifolium (Braun, 1901) (Opisthorchiidae); Oligoganotylus manteri Watson, 1976 (Cryptogonimidae); Clinostomum cf. complanatum (Rudolphi, 1814) (Clino stomidae); Diplostomum (Austrodiplostomum) compactum (Lutz, 1928), Pos thodiplostomum minimum (MacCallum, 1921), Posthodiplostomum sp. (Diplo stomidae); Neodiplostomidae gen. sp. 1, Neodiplostomidae gen. sp. 2 (N eodiplostomidae); and Apharyostrigea sp. (Strigeidae). All species fou nd are described and figured, and their life cycles are briefly discus sed.