title: Description of Nematobibothrioides histoidii (Noble, 1974) (Trematoda: Didymozoidae) and comparison with other genera.
abstract: Nematobibothrioides histoidii, inhabiting the body wall tissues of the sunfish, Mola mola, is characterized by its great length, reaching over 12 m, diverticulated excretory horns, large excretory tube, presence of 2 suckers, rudimentary pharynx, absence of gland cells around pharynx and ceca, oblong vitelline reservoir, and oval eggs, 17 by 15 mu. A description is given of the single species. Of 19 genera in the subfamily Nematobothriinae, 6 that possess the greatest similarity with Nematobibothrioides are compared. A brief discussion of didymozoid affinities is given.
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000469:parasitology; D005399:Fishes / Q000469:parasitology; D009132:Muscles / Q000469:parasitology; D014200:Trematoda / Q000032:analysis / Q000145:classification*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary