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Memórias do Instituto Oswaldo Cruz

versión On-line ISSN 1678-8060

Mem. Inst. Oswaldo Cruz v.87  supl.1 Rio de Janeiro  1992 

Description of Trichuris travassosi n. sp. (Nematoda:Trichurinae) from a brasilian rodent, by light and scanning electron microscopy

Delir Corrêa Gomes, Reinalda Marisa Lanfredti1  , Roberto Magalhães Pinto, Wanderley de Souza1 

UFRJ, Instituto de Biofísica Carlos Chagas Filho, CCS. Departamento de Parasitologia e Biofísica Celular, Rio de Janeiro, Brasil


A new species of a trichurid nematode Trichuris travassosi n. sp., recovered from a wild rodent in the State of Rio Grande do Sul, Brazil, is described and compared to T. myocastoris (Enigk, 1933) and their differentiation was on the basis of detailed morphometrical study. Oryzomys nigripes (Olfers, 1818) is a new host record for the genus. The denomination spicular prepuce is proposed to designate the structure previously named spicular sheath and, conversely, spicular sheath to indicate the cuticle that convers the spicule.

Key words: Nematoda; Trichuris travassosi n. sp.; T. myocastoris; rodent; Oryzomys nigripes; Brazil


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