0157561 - PAU-O 20023021 RIV CZ eng J - Journal Article
Moravec, František
External morphological differences between Crepidostomum farionis and Crepidostomum metoecus (Trematoda: Allocreadiidae), parasites of salmonids, as revealed by SEM.
Folia Parasitologica. Roč. 49, č. 3 (2002), s. 211-217. ISSN 0015-5683. E-ISSN 1803-6465
R&D Projects: GA ČR GA524/00/0267
Institutional research plan: CEZ:AV0Z6022909
Keywords : Trematoda * Crepidostomum * surface morphology
Subject RIV: EG - Zoology
Impact factor: 0.515, year: 2002

Scanning electron microscopy examinations of trematode specimens belonging to Crepidostomum farionis (O.F. Müller, 1784) and C. metoecus Braun, 1900, collected from brown trout, Salmo trutta fario L., in the Czech Republic, made it possible to study their surface morphology including details not described previously. The tegument of both species bears numerous characteristic papillae around the oral sucker (in C. metoecus also around the ventral sucker) and the ventral and dorsal surfaces of the forebody, exhibiting a high degree of variability in numbers and arrangement, with tegumental bosses forming lateral fields on the forebody and minute sensory receptors with submerged cilia scattered on the surface of the dorsal part of the oral sucker. In addition to marked differences in the size, shape and position of the oral muscular lobes, both species distinctly differ in the number of genital pores: two separate pores in C. farionis and a single pore in C. metoecus.
Permanent Link: http://hdl.handle.net/11104/0054999