Abstract
A new species of whipworm, Trichuris robusti, is described from the cecum and large intestine of rodent, Ctnomys robusti, collected in northern Chile. The nematode shows close affinityto T. bradleyi and T. chilensis, both having been described from Chile but because of the possession of ceertain specific morphological chareacters, particularly the disposition of the proximal cloacal tube, could not be assigned to either of them. A key is presented to some of the Trichuris species reported from hystricomorph rodents in Chile and the biographical significance of speciation of chilean trichurids is discussed.
Trichuris robusti n. sp.; trichurids; Ctenomys robustus; spicular tube; proximal and distal; cloaca tube; hystricomorph rodents; speciation; biogeography
A new species of whipworm from a south american hystricomorph rodent
B. B. Babero1
R. B. Murua2
University of Nevada, Department of Biological Sciences, Las Vegas, USA
Universidad Valdivia, Instituto de Ecologia y Evolucion, Valdivia, Chile
A new species of whipworm, Trichuris robusti, is described from the cecum and large intestine of rodent, Ctnomys robusti, collected in northern Chile. The nematode shows close affinityto T. bradleyi and T. chilensis, both having been described from Chile but because of the possession of ceertain specific morphological chareacters, particularly the disposition of the proximal cloacal tube, could not be assigned to either of them. A key is presented to some of the Trichuris species reported from hystricomorph rodents in Chile and the biographical significance of speciation of chilean trichurids is discussed.
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Publication Dates
-
Publication in this collection
15 June 2009 -
Date of issue
June 1990
