title: Strongyluris amazonicus n. sp. (Nematoda: Heterakidae): a parasite of Tropidurus oreadicus from the Brazilian Amazon.
abstract: Tropidurus oreadicus Rodrigues 1987 is a recently described species, thus there are no reports of helminthes parasites for this species. In this study, a morphological characterisation was performed of a nematode species parasite of the large intestine of T. oreadicus captured in an urban area. This urban area is similar to the estuarine dale from Guamá river and the "igarapés" of Belém, Pará State, Brazil. Morphological analysis suggested that the parasite is a new species of nematode, based mainly on the number and distribution pattern of the caudal papillae in males, which is unique for this species. In the present work, we describe for the first time the structure, number, and disposition of the cervical papillae. The morphological data were supported by scanning electron microscopy, which served as an important tool for distinguishing these nematodes from other species of the genus.
authors.affiliation: Laboratório de Biologia Celular e Helmintologia "Profa. Dra. Reinalda Marisa Lanfredi", Universidade Federal do Pará, Instituto de Ciências Biológicas, Rua Augusto Corrêa, 01, Guamá, Belém 66075-110, Pará, Brazil. Electronic address: jeannie@ufpa.br.
authors.forename: Jeannie Nascimento
authors.initials: JN
authors.lastname: Dos Santos
authors.forename: Francisco Tiago
authors.initials: FT
authors.lastname: de Vasconcelos Melo
authors.forename: Lodney Coelho
authors.initials: LC
authors.lastname: Nazaré
authors.forename: Adriano Penha
authors.initials: AP
authors.lastname: Furtado
authors.forename: Elane Guerreiro
authors.initials: EG
authors.lastname: Giese
mesh_terms: D000818:Animals; D017162:Ascaridida / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification* / Q000648:ultrastructure; D017191:Ascaridida Infections / Q000469:parasitology / Q000662:veterinary*; D001938:Brazil; D043344:Chordata / Q000469:parasitology*; D007420:Intestine, Large / Q000469:parasitology; D008297:Male; D008853:Microscopy
keywords: Brazil; Heterakidae; Nematoda; SEM; Strongyluris; Tropidurus oreadicus