Systematic status and first description of male of Dujardinia cenotae Pearse, 1936 [= Hysterothylacium cenotae (Pearse, 1936) Moravec et al., 1995] (Nematoda: Anisakidae)

Abstract

A new collection of adult anisakid nematodes from the intestine of the catfish Rhamdia guatemalensis from two cenotes (= sinkholes) and a cave in the Yucatan Peninsula, southeastern Mexico, has shown that they are conspecific with those inadequately described as Dujardinia cenotae Pearse, 1936. The female is redescribed and the male is described for the first time. The morphology of this species shows that it belongs to the genus Hysterothylacium. This is the only Hysterothylacium species recorded from freshwater fishes in Mexico and it may well be endemic to cenotes and caves of the Yucatan Peninsula.

A new species of genus Hysterothylacium Ward et Magath, 1917 (Nematoda, Anisakidae) from Liparis tanakae (Scorpaeniformes, Liparidae) from the Yellow Sea, China

“…According to Bruce et al (1994), the genus contains 52 species. Since then 11 more have been described (Brizzola and Tanzola 1995;Rajyalakshmi 1996Rajyalakshmi , 1997Moravec et al 1996Moravec et al , 1997Nagasawa 1998, 2000;Torres et al 1998;Luo 1999;Torres and Sota 2004;GoparMerino et al 2005).…”