A new species of Syphacia (Nematoda: Oxyuridae) from Akodon azarae (Rodentia: Cricetidae) in Argentina.
Eight species of Syphacia (Nematoda: Oxyuridae) have been reported from South America in rodents of the Sigmodontinae, only 1 of which has been recorded in Argentina. Syphacia (Syphacia) carlitosi n. sp. is described from the ceca of Akodon azarae bibianae and Akodon azarae hunteri (Sigmodontinae: Akodontini) captured in 3 provinces in the northeast region of Argentina. The new species is differentiated principally by the shape of the cephalic plate; distribution of submedian papillae and amphids; presence, extent, and shape of cervical alae in females; absence of lateral alae; absence of deirids; spicular and gubernaculum length; shape and structure of accessory hook of gubernaculum; and distance of mamelons, excretory pore, and vulva from the anterior extremity. This is the second record of Syphacia parasitizing rodents of the tribe Akodontini.
del Robles
Maria Rosario
MR
Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CONICET-UNLP), Calle 2 #584 (1900) La Plata, Argentina. rosario@cepave.edu.ar
Navone
Graciela Teresa
GT
D000818:Animals; D001118:Argentina; D002432:Cecum / Q000469:parasitology; D005260:Female; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000662:veterinary; D010123:Oxyuriasis / Q000469:parasitology / Q000662:veterinary*; D010124:Oxyuroidea / Q000033:anatomy & histology / Q000145:classification* / Q000648:ultrastructure; D012376:Rodent Diseases / Q000469:parasitology*; D016205:Sigmodontinae / Q000469:parasitology*