New species of Trichuris (Nematoda: Trichuridae) parasitizing Heteromys salvini (Rodentia: Heteromyidae) from Costa Rica, with a key to Trichuris species described from Heteromyidae

Abstract

<jats:p>Abstract Trichuris guanacastei n sp., a parasite isolated from the Salvin’ spiny mouse Heteromys salvini, collected from the Guanacaste Conservation Area, Costa Rica, during February 1996 is described. The new species was compared morphologically with the 29 known species that parasitize rodents distributed in 12 families in North and South America; T. guanacastei n. sp. it is characterized by the following set of traits: presence of a spicular tube (measuring 0.72-0.99); thick proximal cloacal tube and a short distal cloacal tube with a total length of 0.72-1.36; eggs 0.03-0.05 long and a semi-protrusible vulva. The new species represents the first one described in the genus in Costa Rica and the fifth one described in the Americas that parasite Heteromyidae.</jats:p>

Morphological and molecular characterization of Trichuris muris (Nematoda: Trichuridae): studies from two commensal rodent species

“…Trichuris muris was compared with 29 congeners described from North and South American rodents (Barker, 1915; Chandler, 1945, 1946; Tiner, 1950; Cameron & Reesal, 1951; Morini et al , 1955; Read, 1956; Frandsen & Grundmann, 1961; Todd & Lepp, 1972; Babero et al , 1975, 1976; Barus et al , 1975; Babero & Murua, 1987, 1990; Pfaffenberger & Best, 1989; Correa-Gomes et al , 1992; Suriano & Navone, 1994; Robles et al , 2006, 2014, 2018; Robles, 2011; Torres et al , 2011; Panti-May & Robles, 2016; Eberhardt et al , 2019; Falcón-Ordaz et al , 2020).…”

“…Among the 16 species with a spicular tube ( Trichuris opaca Barker & Noyes, 1915; Trichuris fossor Hall, 1916; Trichuris myocastoris Enigk, 1933; Trichuris citelli Chandler, 1945; Trichuris neotomae Chandler, 1945; Trichuris perognathi Chandler, 1945; Trichuris peromysci Chandler, 1946; Trichuris madisonensis Tiner, 1950; Trichuris dipodomis Read, 1956; Trichuris stansburyi Frandsen & Grundmann, 1961; Trichuris fulvi Babero & Murua, 1987; Trichuris laevitestis Suriano & Navone, 1994; Trichuris thrichomysi Torres, Nascimento, Menezes, Garcia, dos Santos, Maldonado Jr, Miranda, Lanfredi & de Souza, 2011; Trichuris silviae Panti-May & Robles, 2016; Trichuris cutillasae Eberhardt, Robles, Monje, Beldomenico & Callejón, 2019; and Trichuris guanacastei Falcón-Ordaz, Monzalvo-López & García-Prieto, 2020) different patterns can be observed.…”