title: Halipegus eschi n. sp. (Digenea: Hemiuridae) in Rana vaillanti from Guanacaste Province, Costa Rica.
abstract: Halipegus eschi n. sp. is described from the esophagus of Rana vaillanti from Guanacaste Province, Costa Rica. The new species differs from other known species of Halipegus on the basis of relative testis size, lateral extent of the uterus, vitelline follicle arrangement, egg size, and polar filament length.
authors: Division of Biological Sciences, Emporia State University, Kansas 66801, USA.
authors: D A
authors: DA
authors: Zelmer
authors: D R
authors: DR
authors: Brooks
mesh_terms: D000818:Animals; D003364:Costa Rica; D004947:Esophagus / Q000469:parasitology; D011898:Ranidae / Q000469:parasitology*; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*