Helminth parasites of six species of anurans from Los Tuxtlas and Catemaco Lake, Veracruz, Mexico

摘要

Thirty-six species of Anura have been reported from Los Tuxtlas, Veracruz, Mexico (Vogt et al., 1997). Of these species, 7 have been recorded as hosts for species of helminths: Bufo marinus Linnaeus, 1758, Bufo valliceps Wiegmann, 1833, Hyla picta (Gfinther, 1901), Leptodactylus melanonotus (Hallowell, 1861), Rana berlandieri Baird, 1854, Rana vaillanti Brocchi, 1877, Smilisca baudinii (Dumeril and Bibron, 1841-Caballero-Deloya, 1974; Lamothe-Argumedo, 1976; Razo-Mendivil et al., 1999; Galicia-Guerrero et al., 2000; GuillenHernfindez et al., 2000; Perez-Ponce de Leon et al., 2000). Several papers dealing with amphibian parasites from this area have been published, mainly consisting of new species descriptions (Caballero-Deloya, 1974; Lamothe-Argumedo, 1976). Others have dealt with specific parasite groups (Razo-Mendivil et al., 1999; GaliciaGuerrero et al., 2000; Guill6n-Hernandez et al., 2000; P6rez-Ponce de L6on et al., 2000). The purpose of this paper is to report component helminth communities and intensity data for 3 additional species: the polymorphic robber frog Eleutherodactylus rhodopsis (Cope, 1866), the yellow treefrog Hyla microcephala Cope, 1866, and the blue-spotted Mexican treefrog Smilisca cyanosticta (Smith, 1953), and to add to the helminth list for the cane toad Bufo marinus, the sabinal frog Leptodactylus melanonotus, and Vaillant's frog Rana vaillanti from Los Tuxtlas. Bufo marinus and E. rhodopsis are mainly terrestrial; L. melanonotus and R. vaillanti are mainly aquatic and are common around lakes or the edges of ponds or flooded pastures; H. microcephala and S. cyanosticta are largely arboreal, living mainly in trees and shrubs in the forest of Los Tuxtlas (Vogt et al., 1997). These 6 species are sympatric at Los Tuxtlas, Veracruz, Mexico (Vogt et al., 1997).