title: Description of Serpentirhabdias atroxi n. sp. (Nematoda: Rhabdiasidae), a parasite of Bothrops atrox (Linnaeus) (Reptilia: Serpentes: Viperidae) in Brazilian Amazonia.
abstract: A new lung-dwelling nematode species is described from the common lancehead Bothrops atrox (Linnaeus) in the Brazilian Amazon Region. The species is assigned to the genus Serpentirhabdias Tkach, Kuzmin & Snyder, 2014 based on the presence of six lips arranged in two lateral groups, the absence of prominent cuticular inflations, and lung parasitism in snakes. Serpentirhabdias atroxi n. sp. differs from other species of the genus mainly by details of the morphology of the anterior end: cuticularised ring surrounding the anterior part of the buccal cavity and six minute onchia present in the oesophastome. Serpentirhabdias atroxi n. sp. is the seventh species of the genus known from the Neotropical Realm and the second species described from viperid snakes.
authors.affiliation: Department of Parasitology, I. I. Schmalhausen Institute of Zoology, 15 Bogdan Khmelnytskyi Street, Kiev, 01030, Ukraine. rhabdias@izan.kiev.ua.
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Kuzmin
authors.affiliation: Laboratory of Histology and Animal Embryology, ISPA/Federal Rural University of Amazônia, Belém, Pará, Brazil.
authors.forename: Elane Guerreiro
authors.initials: EG
authors.lastname: Giese
authors.affiliation: Laboratory of Cell Biology and Helminthology "Prof. Dr. Reinalda Marisa Lanfredi", Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil.
authors.forename: Francisco Tiago de Vasconcelos
authors.initials: FT
authors.lastname: Melo
authors.affiliation: Laboratory of Cell Biology and Helminthology "Prof. Dr. Reinalda Marisa Lanfredi", Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil.
authors.forename: Paulo André Ferreira Borges
authors.initials: PA
authors.lastname: da Costa
authors.affiliation: Interdisciplinary Laboratory of Distance Learning of Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brasil.
authors.forename: Gleomar Fabiano
authors.initials: GF
authors.lastname: Maschio
authors.affiliation: Laboratory of Cell Biology and Helminthology "Prof. Dr. Reinalda Marisa Lanfredi", Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil.
authors.forename: Jeannie Nascimento
authors.initials: JN
authors.lastname: dos Santos
mesh_terms: D000818:Animals; D017837:Bothrops / Q000469:parasitology*; D001938:Brazil; D008168:Lung / Q000469:parasitology; D017196:Rhabditida Infections / Q000469:parasitology; D017172:Rhabditoidea / Q000033:anatomy & histology* / Q000145:classification*; D013045:Species Specificity