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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 104, No. 1, 2009, pp. 93-99
Bioline Code: oc09014
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 104, No. 1, 2009, pp. 93-99

 en Camallanus tridentatus check for this species in other resources (Drasche) (Nematoda: Camallanidae): new taxonomically important morphological data
Santos, Cláudia Portes & Moravec, František

Abstract

Camallanus tridentatus check for this species in other resources is redescribed on the basis of the examination of specimens obtained from the stomach, caeca and intestine of the naturally infected arapaima Arapaima gigas check for this species in other resources (Schinz) from the Mexiana Island, Amazon River Delta, Brazil. Data on the surface morphology of adults inferred from confocal laser scanning and scanning electron microscopical observations are also provided. The study revealed some taxonomically important, previously unreported morphological features in this species, such as the presence of the poorly sclerotized left spicule and deirids. C. tridentatus distinctly differs from other congeneric species parasitizing freshwater fishes in South America mainly in the structure of the buccal capsule and the female caudal end. C. maculatus Martins, Garcia, Piazza and Ghiraldelli is considered a junior synonymm of Camallanus cotti Fujita.

Keywords
Camallanus tridentatus - Nematoda - Arapaima gigas - Brazil

 
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