Abstract

FALCON-ORDAZ, Jorge  and  GARCIA-PRIETO, Luis. Análisis morfológico de algunos Tricostrongilinos (Strongylida) depositados en la Colección Nacional de Helmintos del Instituto de Biología, UNAM, México. Rev. biol. trop [online]. 2004, vol.52, n.2, pp.377-386. ISSN 0034-7744.

The present study analyses the taxonomic status of eleven species of trichostrongylins that parasitize rodents and lagomorphs deposited in the Colección Nacional de Helmintos, Instituto de Biología, UNAM, Mexico. This analysis is based on the morphology of the synlophe, characteristic that had not been studied for most of these nematode species and at present, it has a very important taxonomic value. As a result of this study, the identity of five species is ratified (Trichostrongylus calcaratus, Obeliscoides cuniculi, Carolinensis hue-huetlana, Stilestrongylus peromysci and Nippostrongylus brasiliensis), the transference suggested previously for two more (Vexillata convoluta and Vexillata vexillata) is confirmed, Trichostrongylus chiapensis is synonymized with Boehmiella willsoni, and finally Lamothiella romerolagi is redetermined as Teporingonema cerropela-doensis and Stilestrongylus atlatilpinensis as Stilestrongylus hidalguensis

Keywords : Nematoda; Trichostrongylina; Synlophe; Taxonomy; Rodents.