Digiani M C, Durette-Desset M C
División Zoología Invertebrados, Museo de La Plata, Paseo del Bosque s/n (1900) La Plata, Argentina.
Parasitol Int. 2007 Mar;56(1):9-18. doi: 10.1016/j.parint.2006.10.001. Epub 2006 Nov 28.
The Trichostrongylina parasitic in the leaf-eared mouse Phyllotis sp. (Sigmodontinae) from the Province of Catamarca, Argentina are studied. Three new species of Stilestrongylus Freitas, Lent and Almeida, 1937 (Heligmosomoidea: Heligmonellidae: Nippostrongylinae) are described. Stilestrongylus andalgala n. sp. is distinguished from the most closely related species S. moreli Diaw, 1976 parasitic in Auliscomys boliviensis from Bolivia, by the absence of a common trunk of right rays 2 and 3, by left ray 4 shorter than ray 5, and by the shape of the female tail, without a mucron. Stilestrongylus catamarca n. sp. is distinguished from all the other species in the genus by hypertrophied rays 2, larger than rays 3, and from the closely related species Stilestrongylus barusi Durette-Desset, 1971, parasitic in Sigmodontomys alfari from Colombia, by right ray 4 longer than ray 5 and left ray 4 shorter than ray 5, by a larger spicule length/body length ratio (22.6% vs. 7.2%), and by the presence of a mucron on the female tail. Stilestrongylus gracielae n. sp. most closely resembles Stilestrongylus azarai Durette-Desset and Sutton, 1985, parasitic in Akodon azarae and in Graomys griseoflavus, and Stilestrongylus franciscanus Digiani and Durette-Desset, 2003, also parasitic in G. griseoflavus, both from Argentina. These latter differ from the new species by the right lobe of the caudal bursa: in S. azarai rays 4, 5 and 6 arise at same level from their common trunk and in S. franciscanus right rays 4 and 5 diverge at their distal extremity. Lamanema chavezi Becklund, 1963 (Molineoidea: Molineinae), a parasite of South American camelids, is reported in rodents for the second time.
对寄生于阿根廷卡塔马卡省叶耳鼠（Phyllotis sp.，棉鼠亚科）体内的毛圆科线虫进行了研究。描述了斯氏线虫属（Stilestrongylus Freitas、Lent和Almeida，1937）（细颈线虫总科：细颈线虫科：日本圆线虫亚科）的3个新物种。安达加尔拉斯氏线虫（Stilestrongylus andalgala n. sp.）与最相近的物种——寄生于玻利维亚的玻利维亚奥氏鼠（Auliscomys boliviensis）体内的莫氏斯氏线虫（S. moreli Diaw，1976）的区别在于，右2、3支射线无共同主干，左4支射线短于5支射线，雌虫尾部形状无短突。卡塔马卡斯氏线虫（Stilestrongylus catamarca n. sp.）与该属所有其他物种的区别在于，2支射线肥大，大于3支射线；与相近物种——寄生于哥伦比亚的阿尔法里西氏鼠（Sigmodontomys alfari）体内的巴鲁西斯氏线虫（Stilestrongylus barusi Durette-Desset，1971）的区别在于，右4支射线长于5支射线且左4支射线短于5支射线，交合刺长度与体长的比例更大（分别为22.6%和7.2%），雌虫尾部有短突。格拉谢莱斯氏线虫（Stilestrongylus gracielae n. sp.）与寄生于阿扎拉稻鼠（Akodon azarae）和灰黄稻鼠（Graomys griseoflavus）体内的阿扎拉斯氏线虫（Stilestrongylus azarai Durette-Desset和Sutton，1985）以及同样寄生于阿根廷灰黄稻鼠体内的弗朗西斯卡努斯氏线虫（Stilestrongylus franciscanus Digiani和Durette-Desset，2003）最为相似。后两者与新物种的区别在于尾翼的右叶：在阿扎拉斯氏线虫中，4、5和6支射线从其共同主干的同一水平发出；在弗朗西斯卡努斯氏线虫中，右4和5支射线在其远端分开。1963年报道的查韦兹拉马内马线虫（Lamanema chavezi Becklund）（泡翼线虫总科：泡翼线虫亚科）是南美骆驼科动物的寄生虫，这是该线虫第二次在啮齿动物中被报道。
