alexa Trematodes of the family Heterophyidae (Digenea) in Mexico: A review of species and new host and geographical records
Agri and Aquaculture

Agri and Aquaculture

Fisheries and Aquaculture Journal

Author(s): T SCHOLZ

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A review of heterophyid trematodes found in Mexico, both as metacercariae encysted in ®sh and adults in ®sh-eating birds and mammals, is presented, including numerous new geographical and host records. Data on the morphology, spectrum of intermediate and de®nitive hosts, site of infection of metacercariae, distribution in Mexico and biology of the following species are provided (species ®rst reported from Mexico marked with an asterisk): *Ascocotyle (Ascocotyle) gemina Font, Overstreet and Heard, 1984; A. (A.) leighi Burton, 1956; A. (A.) tenuicollis Price, 1935; A. (Leighia) chandleri Lumsden, 1963; *A. (L .) mcintoshi Price, 1936; A. (L .) megalocephala Price, 1932; A. (L .) nunezae Scholz, Vargas- Va zquez, Vidal-MartõÂnez and Aguirre-Macedo, 1997; Ascocotyle (Leighia) sp.; *A. (Phagicola) ampullacea Miller and Harkema, 1962; A. (P.) diminuta Stunkard and Haviland, 1924; A. (P.) macrostoma (Robinson, 1956); *A. (P.) longa Ransom, 1920; A. (P.) nana Ransom, 1920; Centrocestus formosanus (Nishigori, 1924); *Euhaplorchis californiensis Martin, 1950; Galactosomum pu ni Yamaguti, 1941; *Haplorchis pumilio (Looss, 1896); Heterophyidae gen. sp. ( 5 Haplorchoides sp. of Scholz and Vargas-Va zquez, 1998); *Phocitremoides ovale Martin, 1950; and *Pygidiopsis pindoramensis (Travassos, 1929). Two of the above-listed species, C. formosanus and H. pumilio, have been introduced recently to Mexico, most probably from Asia with the imported thiarid snail Melanoides tuberculata (MuÈller). Metacercariae of heterophyid trematodes are among the most frequent and abundant parasites of ®sh in Mexico, in particular in its southeastern part.

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This article was published in Journal of Natural History and referenced in Fisheries and Aquaculture Journal

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