Spinitectus osorioi (Nematoda: Cystidicolidae) in the Mexican endemic fish Atherinella alvarezi (Atherinopsidae) from the Atlantic River drainage system in Chiapas, Southern Mexico

Abstract

Specimens of Spinitectus osorioi

Redescription of Spinitectus tabascoensis (Nematoda: Cystidicolidae) from fishes of the Lacandon rain forest in Chiapas, southern Mexico, with remarks on Spinitectus macrospinosus and S. osorioi

“…The general morphology of specimens of the present material, both from A. alvarezi and E. mexicanus, is, more or less, in agreement with the original description of Spinitectus osorioi from Chirostoma spp. given by Choudhury and Pérez-Ponce de and the redescription of this species from A. alvarezi provided recently by Moravec et al (2010). Similarly to specimens from A. alvarezi reported by the latter authors, those from E. mexicanus exhibit mostly somewhat shorter spicules and smaller eggs as compared to those from Chirostoma spp., but these differences are negligible and can be considered to be within the intraspecific variability of S. osorioi.…”

Helminth parasites of freshwater fish in Chiapas, Mexico

“…Known helminth parasites in this ichthyofauna include 47 species, from 37 genera and 22 families (Pineda-López 1985; Moravec et al 1993Moravec et al , 1998Moravec et al , 2007Moravec et al , 2009Moravec et al , 2010Vidal-Martínez 1995;Mendoza-Franco et al 2000;Vidal-Martínez et al 2001;Moravec 2002, 2004;AguilarAguilar et al 2003;Caspeta-Mandujano et al 2005Salgado-Maldonado et al 2005bSalgado-Maldonado 2006, 2008Cabañas-Carranza and Caspeta-Mandujano 2007), mostly from the family Cichlidae (14 species examined). Data are also available for other families, including the Ariidae (Potamarius usumacintae), Characidae (Brycon guatemalensis), Clupeidae (Dorosoma anale), Gerreidae (Eugerres mexicanus), Heptapteridae (Rhamdia guatemalensis), and Poeciliidae (Poecilia sphenops).…”

Spinitectus mixtecoensis sp. nov. (Nematoda: Cystidicolidae), from the Oaxaca killifish Profundulus punctatus (Osteichthyes: Profundulidae) from Mexico, with comments on the distribution of Spinitectus humbertoi in the genera Profundulus and Tlaloc

“…The genus Spinitectus Fourment, 1883 includes a large number of species infecting freshwater and marine fishes, some amphibians, and one species is known from a mammal (Boomker, 1993;Moravec et al, 2002Moravec et al, , 2009Moravec et al, , 2010. Sixteen species of Spinitectus have been reported from freshwater fishes in the New World (Spinitectus acipenseri Choudhury and Dick, 1992; S. agonostomi Moravec and Baruš, 1971;S.…”

“…yorkei Travassos, Artigas andPereira, 1928 andS. aguapeiensis Acosta, González-Solís andda Silva, 2017 (Moravec, 1998;Caspeta-Mandujano et al, 2007;Moravec et al, 2009Moravec et al, , 2010Caspeta-Mandujano, 2010;Acosta et al, 2017). Of those, 6 species have been reported from Mexico: S. agonostomi, S. humbertoi, S. mariaisabelae, S. mexicanus, S. osorioi, and S. tabascoensis (Caspeta-Mandujano, 2010).…”