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1 January 2004 Morphology and Diagnosis of Fourth-Stage Larvae of Tridentoinfundibulum gobi (Nematoda, Strongyloidea) Parasitizing Horses, Equus caballus
Vitaliy A. Kharchenko, J. Ralph Lichtenfels, Tatiana A. Kuzmina
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Abstract

The fourth-stage larva of Tridentoinfundibulum gobi, one of the rare species of Cyathostominae, is identified and described. The larva was identified as T. gobi as a result of finding molting forms showing characteristics of both larvae and adults. The buccal capsule is large and spherical; its width exceeds its depth. The buccal capsule walls are thick, gradually narrowed to the apical edge and abruptly narrowed to the posterior edge. The esophageal funnel has 3 large, triangular teeth projecting into the buccal cavity similar to those of Triodontophorus spp. and Gyalocephalus capitatus. The fourth-stage larva of T. gobi can be distinguished by its buccal capsule having a smaller diameter than the esophagus. In addition, the buccal capsule of T. gobi fourth-stage larvae is wider than deep but is as deep or deeper than wide in the fourth-stage larvae of Triodontophorus spp., and the buccal teeth of T. gobi fourth-stage larvae are much more steeply pointed and have smoother anterior edges than those of G. capitatus.

Vitaliy A. Kharchenko, J. Ralph Lichtenfels, and Tatiana A. Kuzmina "Morphology and Diagnosis of Fourth-Stage Larvae of Tridentoinfundibulum gobi (Nematoda, Strongyloidea) Parasitizing Horses, Equus caballus," Comparative Parasitology 71(1), 73-77, (1 January 2004). https://doi.org/10.1654/4101
Published: 1 January 2004
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