Falcón-Ordaz Jorge, Monzalvo-López René Josué, García-Prieto Luis
Laboratorio de Morfología Animal, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México.
Instituto de Biología, Universidad Nacional Autónoma de México, México D.F., Mexico.
Rev Bras Parasitol Vet. 2020 Jun 26;29(2):e022019. doi: 10.1590/S1984-29612020028. eCollection 2020.
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.
描述了1996年2月从哥斯达黎加瓜纳卡斯特保护区采集的萨尔文刺鼠（Heteromys salvini）体内分离出的一种寄生虫——瓜纳卡斯特鞭虫（Trichuris guanacastei n sp.）。将该新物种与寄生于南北美洲12个科啮齿动物的29种已知物种进行了形态学比较；瓜纳卡斯特鞭虫新物种具有以下一组特征：有一个交合刺管（长0.72 - 0.99）；泄殖腔近端管厚，远端管短，总长0.72 - 1.36；虫卵长0.03 - 0.05，阴门半可突出。该新物种是哥斯达黎加该属中描述的第一个物种，也是美洲描述的寄生于异鼠科的第五个物种。
