Biodiversity of anuran endoparasites from a transitional area between the Atlantic Forest and Cerrado biomes in Brazil: new records and remarks Author Aguiar, Aline Laboratório de Herpetologia, Departamento de Biodiversidade, Instituto de Biociências, UNESP Rio Claro, Avenida 24 A, 1515 - Jardim Vila Bela, CEP 13506 - 900, Rio Claro, São Paulo, Brazil Author Morais, Drausio Honorio Universidade Federal de Uberlândia - UFU, Instituto de Ciências Agrárias, LMG- 746, Km 1, Monte Carmelo, 38500 - 000, MG, Brazil Author Firmino Silva, Lidiane A. Departamento de Parasitologia, Instituto de Biociências de Botucatu, Universidade Estadual Paulista - UNESP Author Anjos, Luciano Alves Dos Departamento de Biologia e Zootecnia, Faculdade de Engenharia de Ilha Solteira, Universidade Estadual Paulista - UNESP, Passeio Monção, 226, CEP 15385 - 000, Ilha Solteira, São Paulo, Brazil Author Foster, Ottilie Carolina Departamento de Parasitologia, Instituto de Biociências de Botucatu, Universidade Estadual Paulista - UNESP Author Silva, Reinaldo José Da Departamento de Parasitologia, Instituto de Biociências de Botucatu, Universidade Estadual Paulista - UNESP text Zootaxa 2021 2021-03-18 4948 1 1 41 journal article 7577 10.11646/zootaxa.4948.1.1 7af2fc34-63ae-40d2-95a6-4bed18653e7a 1175-5326 4616068 79CCDC5F-2F94-4398-B3DD-8DAC05669E9C Ochoterenella digiticauda Caballero, 1944 Hosts (prevalence; range) : R. diptycha (1/21; 4). Site of infection : body cavity. Stage : adult. Type host and type locality : R. marina (= B. marinus ), Chiapas , Huixtla, Mexico . Comments : Filarids associated with anurans are from Onchocercidae and are classified in two subfamilies: Icosiellinae and Waltonellinae ( Anderson et al. 2009 ; Souza Lima et al . 2012 ). The genus Ochoterenella belongs to Waltonellinae and is characterized by a long tail, lacking cephalic spines, lateral cuticularized parastomal structures, annular bands of longitudinally oriented saliences (bosses), lack of lateral and caudal alae, circular mouth lacking lips, viviparous females, vulva in the esophagus region and males with caudal papillae and unequal spicules ( Lent et al . 1946 ; Esslinger 1986 ; Souza Lima et al . 2012 ). There are 16 species of Ochoterenella recorded for amphibians from Neotropical Realm ( Souza Lima et al . 2012 ; Campi„o et al . 2014). Our specimens presented the main characters of Ochoterenella digiticauda such as the arrangement and size of the cuticular bosses, distinct median ventral preanal cuticularized plaque located just anterior to caudal papillae, structural details of the spicules such as tip closed slightly bulbous of the right and proximal portion weakly cuticularized in the left (see Lent et al . 1946 ; Esslinger 1986 ). Several hosts have been recorded for O. digiticauda such as bufonids, leptodactylids, and hylids. This is the second record of O. digiticauda for R. diptycha , the first was in Paraguay ( Lent et al . 1946 ).