Resumen

JIMENEZ, Francisco Agustín; LEON-REGAGNON, Virginia  y  PEREZ-RAMOS, Edmundo. Two new species of Parapharyngodon (Oxyuroidea: Pharyngodonidae) from the enigmatic Bipes canaliculatus and Bipes tridactylus (Squamata: Bipedidae). Rev. Mex. Biodiv. [online]. 2008, vol.79, suppl., pp.113-120. ISSN 2007-8706.

Two species of Parapharyngodon collected from Bipes canaliculatus and Bipes tridactylus are herein described. Parapharyngodon lamothei n. sp. was collected from the 4-toed worm lizard Bipes canaliculatus from southern Mexico. It is unique in possessing 6 lips, a gubernaculum, a fringed cloacal lip, and a single medial papilla in addition to 3 paired papillae. Parapharyngodon maestro n. sp., was collected from the 3-toed worm lizard Bipes tridactylus, and it is characterized by having 3 bilobed lips, a simple cloaca, a relatively long spicule, and by possessing 3 pairs of caudal papillae. These are the third and fourth species of the genus recorded in Mexico.

Palabras llave : Nematoda; Oxyuridae; Bipedidae; Parapharyngodon; Bipes; Mexico.

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