title: A new species of Sprostoniella Bychowsky and Nagibina, 1967 (Monogenea: Capsalidae) from Chaetodipterus zonatus (Osteichthyes: Ephippidae) in Chamela Bay, Mexico.
abstract: A new species of Sprostoniella is described from the gills of Chaetodipterus zonatus in Chamela Bay, on the west coast of Mexico. The new species differs from the 2 previously described congeners by having smaller testes each of which is not nearly as long as the ovary. It further differs from the type species, Sprostoniella multitestis, by having a poorly developed pair of accessory sclerites and the cecal diverticula are not confluent posteriorly. The new species also differs from Sprostoniella micrancyra, the other species of the genus, by having a shorter peduncle, the glands of Goto are smaller than the testes and ovary, and by having a slightly different haptoral structure, with 1 pair of hamuli rather than 2 pairs, and 1 central haptoral loculus instead of 2 loculi.
authors.affiliation: Laboratorio de Helmintología, Instituto de Biología, UNAM, México DF, México.
authors.forename: G
authors.initials: G
authors.lastname: Pérez-Ponce de León
authors.forename: B
authors.initials: B
authors.lastname: Mendoza-Garfias
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000469:parasitology*; D005880:Gills / Q000469:parasitology; D010473:Perciformes / Q000469:parasitology*; D010986:Platyhelminths / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*