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 Haematoloechus neivai ( Travassos & Artigas , 1927 ) Odening, 1960 Hosts (prevalence; range) : P. platensis (5/38; 1–14). Site of infection : lungs. Stage : adult. Type host and type locality : L. latrans (= L. ocellatus ), Rio de Janeiro , Brazil . Comments : this digenean was described as Pnemonesces neivai by Travassos & Artigas (1927) , and then Ingles (1932) placed it in the genus Haematoloechus ; then, Odening (1960) proposes the genus Neohaematoloechus based on the absence of ventral sucker and considered Neohaematoloechus neivai as the type species. Recently, León- Règagnon & Topan (2018) in a taxonomic revision of the genus Haematoloechus proposed the new combination Haematoloechus neivai as valid species considering phylogenetic evidence, however there were not included molecular data of species historically considered of the genus Neohaematoloechus . Haematoloechus neivai presents a brown body due to host’s blood in intestinal caeca and numerous eggs in branches of uterus. Moreover, we observed in our specimens other diagnostic features such as absence of ventral sucker, oval testes in coincident zones, and a very developed Mehlis’s gland which is larger than the rounded ovary. Also, uterine loops are replete with eggs and distributed predominantly in the extracaecal region reaching the level of oral sucker where is the genital pore ( Travassos & Darriba 1930 ; Dobbin Jr. 1957). Pseudis platensis has previously been recorded as host for H. neivai by Travassos & Freitas (1940) in Mato Grosso , Brazil .