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Morphology of the oxyurid nematodes Trypanoxyuris (T.) cacajao n. sp. and T. (T.) ucayalii n. sp. from the red uakari monkey Cacajao calvus ucayalii in the Peruvian Amazon

Published online by Cambridge University Press:  18 August 2015

D.F. Conga ,
E.G. Giese ,
N.M. Serra-Freire ,
M. Bowler  and
P. Mayor
D.F. Conga*
Affiliation:
Programa de pós-graduação em Saúde e Produção Animal na Amazônia - Universidade Federal Rural da Amazônia-UFRA, Av. Perimetral, 2501, Montese, Belém, Pará66077-901, Brazil
E.G. Giese
Affiliation:
Programa de pós-graduação em Saúde e Produção Animal na Amazônia - Universidade Federal Rural da Amazônia-UFRA, Av. Perimetral, 2501, Montese, Belém, Pará66077-901, Brazil Laboratório de Histologia e Embriologia Animal, Instituto de Saúde e Produção Animal na Amazônia - Universidade Federal Rural da Amazônia-UFRA, Av. Perimetral, 2501, Montese, Pará66077-901, Brazil
N.M. Serra-Freire
Affiliation:
Programa de pós-graduação em Saúde e Produção Animal na Amazônia - Universidade Federal Rural da Amazônia-UFRA, Av. Perimetral, 2501, Montese, Belém, Pará66077-901, Brazil Instituto Oswaldo Cruz/Fiocruz, Av. Brasil 4.365 - Anexo posterior Pavilhão Lauro Travassos, sala 8, Manguinhos, Rio de Janeiro, RJ, 21.045-900, Brazil
M. Bowler
Affiliation:
San Diego Zoo Global, Institute for Conservation Research, Escondido, USA
P. Mayor
Affiliation:
Departament de Sanitat i d'Anatomia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Edifici V, E-08193 Bellaterra, Barcelona, Spain
*
* E-mail: [email protected]
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Abstract

Cacajao calvus ucayalii (Thomas, 1928) (Primates: Pitheciidae), a subspecies endemic to the Peruvian Amazon, occurs in patchy and sometimes isolated populations in north-eastern Peru and is in a vulnerable situation, mainly due to habitat loss and hunting. This rareness and remote distribution means that, until now, parasitical studies have been limited. Based on optical and scanning electron microscopy of specimens of both sexes, we report two new species of Trypanoxyuris pinworms occurring in the large intestine of the Peruvian red uakari, namely Trypanoxyuris (Trypanoxyuris) cacajao and Trypanoxyuris (Trypanoxyuris) ucayalii. Both species showed a distinct morphology of the lips and cephalic structure. Sexual dimorphism in the lateral alae was observed in both male and the female worms, with ventral ornamentation being shown in the oesophageal teeth. The finding of these new pinworm species highlights the possibility of discovering other species.

Type
Research Papers
Information
Journal of Helminthology , Volume 90 , Issue 4 , July 2016 , pp. 483 - 493
Copyright
Copyright © Cambridge University Press 2015 

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