INVESTIGADORES
ROBLES Maria Del Rosario
artículos
Título:
New species of Trichuris (Nematoda: Trichuridae) from Akodon montensis Thomas, 1913 of the Paranaense forest in Argentina
Autor/es:
ROBLES, M. R.
Revista:
JOURNAL OF PARASITOLOGY
Editorial:
AMER SOC PARASITOLOGISTS
Referencias:
Lugar: Washington, Estados Unidos; Año: 2011 vol. 97 p. 319 - 327
ISSN:
0022-3395
Resumen:
Species of Trichuris (Nematoda: Trichuridae) parasitize a broad range of mammalian hosts. To date, 21 Trichuris species infecting 9 families of rodents have been found in North and South America. Trichuris navonae n. sp. is described on the basis of specimens recovered from a species of forest dwelling mice, Akodon montensis (Cricetidae: Sigmodontinae), from 9 localities of Misiones Province, Argentina. A comparison with all of the species of Trichuris from North and South American rodents is given. The separation of the new species of Trichuris is based on morphologic and morphometrica features, such as the absence of a spicular tube, the presence of a cylindrical spicular sheath with sharp spines, a non-protrusive vulva, a long anterior-posterior portion of the body, a lengthy spicule, and a proximal and distal cloacal tube. This is the third record of this genus in rodents of the subfamily Sigmodontinae from Argentina and the fifth record from South American rodents. Despite the large number of potential host species, only about 1.9% of sigmodontine rodent species have been reported as hosts of Trichuris spp. It is suggested that this number represents but a small fraction of Trichuris spp. that occur in sigmodontine rodents, and that additional survey of this group should yield additional species.