Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish Author Rubio-Godoy, Miguel Author Paladini, Giuseppe Author García-Vásquez, Adriana text Zootaxa 2010 2509 1 29 journal article 10.5281/zenodo.196033 a86ba3e8-b241-4166-a37a-5abb4b60edcc 1175-5326 196033 Gyrodactylus gambusiae Rogers & Wellborn, 1965 ( Figure 12 ; Tables 4 and 7) Type host: Gambusia affinis Baird & Girard (“mosquitofish”, “guayacón mosquito”). Site of infection: Fins and body. Type locality: Welaka Lake, Putnam Co., Florida, USA . Type material examined: One paratype ( USNPC 908–19/20). Comments: Ventral bar not visible in paratype . The large open faced, angular marginal hook sickles of G. gambusiae are readily differentiated from those of both G. j a ro c h o sp. nov. and G . xalapensis sp. nov. ( Figures 13, 14 ). The marginal hook sickles of G. gambusiae are morphologically similar to those of Gyrodactylus milleri Harris & Cable, 2000 (all three marginal hook types - see the full description below) and G. turnbulli . The sickle point of G. gambusiae , which quickly narrows abruptly to give a short tip, however, most readily discriminates this species from the latter two, which have longer, more slender sickle points.