title: Two new species of Echeneibothrium (Cestoda: Tetraphyllidea) from skates in the western North Atlantic.
abstract: Echeneibothrium bathyphilum sp. n. is described from the deep-sea skate, Raja bathyphila Holt and Byrne. Echeneibothrium sobrinum sp. n., a parasite in the spiral intestine of the skates Raja ocellata Mitchill and Raja erinacea Mitchill, is described from Vineyard Sound near Woods Hole, Massachusetts. Additional data are given for E. vernetae Euzet, 1956, from living and fixed specimens obtained from the type host in the type locality. Morphology of the strobilae and bothridia, testes numbers, and cirrus pouch dimensions clearly distinguish the new species from all others.
mesh_terms: D000818:Animals; D002589:Cestoda / Q000033:anatomy & histology / Q000145:classification*; D005399:Fishes / Q000469:parasitology*; D007422:Intestines / Q000469:parasitology; D008404:Massachusetts