A new species of Syphacia (Nematoda: Oxyuridae) from Calomys laucha (Rodentia: Cricetidae) in an agroecosystem in Central Argentina.

ROJAS HERRERA, E. J.; NOTARNICOLA, JULIANA; MIÑO, M.; ROBLES, M.R.

JOURNAL OF PARASITOLOGY

AMER SOC PARASITOLOGISTS

Lugar: Washington, Estados Unidos; Año: 2011 vol. 97 p. 676 - 681

0022-3395

A new oxyurid nematode Syphacia hodarae n. sp. is described from the cecum and rectum of the cricetid rodent Calomys laucha Fischer, 1814 (Sigmodontinae, Phyllotini) captured in an agroecosystem of Central Argentina. The new species is distinguished from other members of the genus mainly by the shape of the cephalic plate; presence of cervical alae in females; absence of lateral alae, and absence of deirids. Some characters are shared with S. carlitosi, a parasite of Akodon azarae from the wetlands in Argentina. However, S. hodarae n. sp. can be differentiated from this species by the absence of ornamentation on the accessory hook of the gubernaculum; by the lengths of spicule and gubernaculum; by the size of the eggs, and the distance to the vulva from the anterior end. This is a first record of Syphacia from the tribe Phyllotini in Argentina and the first time a Syphacia species is reported from C. laucha