CEPAVE   05420
CENTRO DE ESTUDIOS PARASITOLOGICOS Y DE VECTORES
Unidad Ejecutora - UE
artículos
Título:
Redescription of Syphacia venteli Travassos, 1937 (Nematoda: Oxyuridae) from Nectomys squamipes in Argentina and Brazil and description of a new species of Syphacia from Melanomys caliginosus in Colombia
Autor/es:
ROBLES M. R.; NAVONE G T
Revista:
PARASITOLOGY RESEARCH
Editorial:
SPRINGER
Referencias:
Año: 2009
ISSN:
0932-0113
Resumen:
Syphacia venteli Travassos, Mem Inst Oswaldo
Cruz 32:607613, 1937 is redescribed on the basis of
specimens recovered from the type host, Nectomys squamipes
(Brants 1827), from Brazil and Argentina. Specimens
determined by Quentin (Bull Mus Natl Hist Nat 2:909925,
1969) as S. venteli from Melanomys caliginosus (Tomes
1860) in Colombia were re-studied and assigned to a new
species. In both species, structures such as the shape of the
cephalic plate, details and distribution of the submedian
papillae and amphids, presence and absence of the lateral
and cervical alae, and shape and structure of the accessory
hook of the gubernaculum were studied with the light
microscope and scanning electron microscope. The present
survey is the first detailed study of the species S. venteli
since the original description, and the first record of this
species from Argentina. Moreover, the present study
suggests that the validity of some host species of Syphacia
should be questioned and that through of the study of
deposited specimens, a more exact number of parasitized
host species can be confirmed, contributing to a better
understanding of host specificity in this genus.