title: A new species of Parapharyngodon (Nematoda: Pharyngodonidae) infecting Dermatonotus muelleri (Anura: Microhylidae) from Caatinga, Northeastern Brazil.
abstract: Parapharyngodon silvoi n. sp. (Nematoda: Pharyngodonidae) is described from the large and small intestine of the Muller's termite frog Dermatonotus muelleri (Boettger, 1885) from the biome Caatinga, Exu municipality, Pernambuco State, Brazil, Dermatonotus muelleri is a fossorial species with a specialized termite diet, and feeding and reproductive behavior occurring only during the wet season. The new species is distinguished from other species of the genus Parapharyngodon by showing ovary not coiled around the esophagus, morphology of anterior cloacal lip, spicule size and number of caudal papillae.
authors.affiliation: Programa de Pós-graduação em Bioprospecção Molecular, Universidade Regional do Cariri - URCA, R. Cel Antônio Luis, 1161, Pimenta, CEP 63100-000, Crato, CE, Brazil; Email: araujofilhoaj@gmail.com.
authors.forename: João A
authors.initials: JA
authors.lastname: de Araujo Filho
authors.affiliation: Departamento de Química Biológica, Universidade Regional do Cariri - URCA, R. Cel. Antônio Luiz, 1161, Pimenta, CEP 63105-000, Crato, CE, Brazil; Email: unknown.
authors.forename: Samuel V
authors.initials: SV
authors.lastname: Brito
authors.affiliation: Departamento de Química Biológica, Universidade Regional do Cariri - URCA, R. Cel. Antônio Luiz, 1161, Pimenta, CEP 63105-000, Crato, CE, Brazil; Email: unknown.
authors.forename: Waltécio De O
authors.initials: Wde O
authors.lastname: Almeida
authors.affiliation: UNESP - Univ Estadual Paulista, Campus de Botucatu, Instituto de Biociencias, Departamento de Parasitologia - Av. Bento Lopes s/n. Distrito de Rubião Junior, CEP 18618-970 Botucatu, SP, Brasil; Email: unknown.
authors.forename: Drausio H
authors.initials: DH
authors.lastname: Morais
authors.affiliation: Departamento de Ciências Biológicas, Universidade Regional do Cariri - URCA, R. Cel. Antônio Luiz, 1161, Pimenta, CEP 63105-000, Crato, CE, Brazil; Email: unknown.
authors.forename: Robson W
authors.initials: RW
authors.lastname: Ávila
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D001001:Anura / Q000469:parasitology*; D049628:Body Size; D001938:Brazil; D005260:Female; D008297:Male; D009929:Organ Size; D010123:Oxyuriasis / Q000469:parasitology / Q000662:veterinary*; D010124:Oxyuroidea / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development