title: Rhabdias filicaudalis n. sp. (Nematoda: Rhabdiasidae) from the snake Spilotes pullatus (Serpentes: Colubridae) in Brazil.
abstract: Rhabdias filicaudalis n. sp. (Nematoda: Rhabdiasidae) from the lung of Spilotes pullatus (Serpentes: Colubridae) is described. The host snake was captured in the municipality of Avaré, São Paulo State, Brazil. Rhabdias filicaudalis n. sp. differs from all other species by the combination of the following characters: straight body, truncated anterior end, six weakly developed lips arranged in two opposite groups of three, pre-equatorial vulva, oesophagus length/body length ratio (%) 4.9-7.5 (5.8 +/- 0.6), nerve ring distance from anterior end/oesophagus length ratio (%) 36.9-61.1 (49.8 +/- 6.4), tail length/body length ratio (%) 3.0-5.5 (4.0 +/- 0.5), vulva distance from anterior end/body length ratio (%) 39.9-51.7 (45.9 +/- 3.5), and a cuticular filiform tail tip.
authors.affiliation: Department of Parasitology, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, São Paulo State, Brazil. thbarrella@gmail.com
authors.forename: T H
authors.initials: TH
authors.lastname: Barrella
authors.forename: K R
authors.initials: KR
authors.lastname: dos Santos
authors.forename: R J
authors.initials: RJ
authors.lastname: da Silva
mesh_terms: D000818:Animals; D001938:Brazil; D017812:Colubridae / Q000469:parasitology*; D008297:Male; D010273:Parasitic Diseases, Animal / Q000469:parasitology*; D017196:Rhabditida Infections / Q000469:parasitology / Q000662:veterinary*; D017172:Rhabditoidea / Q000033:anatomy & histology / Q000145:classification / Q000302:isolation & purification*