Ultrastructural study of the teguminal sheaths of two metastrongyloid nematodes
- 1 May 1970
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Zoology
- Vol. 48 (3) , 423-425
- https://doi.org/10.1139/z70-073
Abstract
The ultrastructure of the surface layers of two metastrongyloid nematodes, Crenosoma vulpis and Perostrongylus pridhami, is described. The cuticles of both worms consist of the three basic layers of a typical nematode cuticle: an outer cortex, a middle matrix, and an inner basal layer. The "teguminal sheath" described as an outer sheath in certain metastrongyloids appears to correspond to the cortex in both the nematodes studied. The very wide matrix of low-density material separating the outer cortex from the inner basal layer of the cuticle is thought to have led to the concept that the "teguminal sheath" is a loose membranous sheath enveloping the nematode.Keywords
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