CEPAVE   05420
CENTRO DE ESTUDIOS PARASITOLOGICOS Y DE VECTORES
Unidad Ejecutora - UE
artículos
Título:
The genus Guerrerostrongylus (Nematoda, Heligmonellidae) in cricetid rodents from the Atlantic Rain Forest of Misiones, Argentina: emended description of Guerrerostrongylus zetta (Travassos, 1937) and description of a new species
Autor/es:
MARIA CELINA DIGIANI; JULIANA NOTARNICOLA; GRACIELA T. NAVONE
Revista:
JOURNAL OF PARASITOLOGY
Editorial:
AMER SOC PARASITOLOGISTS
Referencias:
Lugar: Washington, Estados Unidos; Año: 2012 vol. 98
ISSN:
0022-3395
Resumen:
Two species of Guerrerostrongylus Sutton and Durette-Desset, 1991 are reported in cricetid rodents from the Atlantic rain forest of Misiones, Argentina. Guerrerostrongylus zetta (Travassos, 1937) is redescribed on the basis of material collected from Oligoryzomys nigripes from Argentina, and material loaned by CHIOC from Brazil. It is characterized by a synlophe with about 40-45 (35-48) well developed cuticular ridges, caudal bursa with long rays 6 and dorsal ray divided at mid-length, and well sclerotized spicules with marked twisting. It was found with a prevalence of 100% in O. nigripes (14 hosts examined) however it was not found in its type host Nectomys squamipes (4 hosts examined). Guerrerostrongylus ulysi n. sp. which is described from Sooretamys angouya, differs from the remaining species in the genus mainly by a synlophe with a strong reduction of the cuticular ridges and their struts on the right side, and by a caudal bursa heart-shaped, with short rays 6 and dorsal ray divided distally. It was found with a prevalence of 100% on 5 hosts examined.