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Nervous system in Olveria indica, a rumen paramphistome (Digenea) of bovines, as revealed by non-specific esterase staining

Published online by Cambridge University Press:  05 June 2009

Neerja Mishra
Affiliation:
Department of Zoology, North Eastern Hill University, Shillong- 793014, India
Veena Tandon
Affiliation:
Department of Zoology, North Eastern Hill University, Shillong- 793014, India

Abstract

On the basis of esterase localization the complete nervous system has been visualized in Olveria indica Thapar & Sinha, 1945, a paramphistome from the rumen of cattle, recorded for the first time from the north-east region of India. The basic number of posterior longitudinal nerves (i.e., 3 pairs) is the same as in other paramphistomes; four pairs of anterior longitudinal nerves are present, there being an extra pair of pharyngeal nerves. Conspicuous differences in the innervation patterns were observed, mainly in the innervation of the genital atrial region and acetabulum. The presence of prominent longitudinal connections, joining the anterior and posterior dorsal nerves and the anterior and posterior ventral nerves on either side, is a feature not hitherto found in other paramphistome species. The details of the course of all the nerves and their branches are discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1986

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