Durette-Desset M C, Lethonen J T, Haukisalmi V
Laboratoire de Biologie parasitaire, Protistologie, Helminthologie et CNRS FR3, Muséum National d'Histoire Naturelle, 61, rue Buffon, 75231 Paris, France.
Parasite. 2002 Mar;9(1):29-35. doi: 10.1051/parasite/200209129.
Two new species of Heligmonellidae, Heligmonina wrightae n.sp. (Nippostrongylinae) and Nesomystrongylus fissicauda n.gen., n. sp. (Brevistriatinae) are described from Madagascar in Nesomys rufus and N. audeberti (Muridae). In Nesomys audeberti, the species are coparasites. Heligmonina wrightae is differentiated from all the other species of the genus, except H. malacomysi Sakka & Durette-Desset, 1988, by the ratio of the length of the spicules on the length of the body (25-27.8% versus 9.5-7%). It differs from H. malacomysi by the pattern of the caudal bursa and by the angle of the axis of orientation of the cuticular ridges on the sagittal axis. Nesomystrongylus fissicauda is related to the genus Fissicauda Durette-Desset & Krishnasamy, 1976, by the absence of the carene, by the ridges discontinuous on all the sides of the body and by the deeply divided dorsal ray. It differs from this genus by a different structure of the ridges, by the pattern of the caudal bursa, (very tiny rays 2 and strongly developed rays 3, rays 8 arising from common trunk of rays 2 to 6) and by the presence of a caudal tip in the female.
在马达加斯加的红背鼠（Nesomys rufus）和奥氏鼠（N. audeberti）（鼠科）体内发现了管圆线虫科的两个新物种，即赖氏细颈线虫新种（Heligmonina wrightae n.sp.）（类圆线虫亚科）和裂尾新属新种（Nesomystrongylus fissicauda n.gen., n. sp.）（短纹线虫亚科）。在奥氏鼠体内，这两个物种是共寄生物。赖氏细颈线虫与该属的所有其他物种不同，除了1988年的马拉科米斯细颈线虫（H. malacomysi Sakka & Durette-Desset），其区别在于交合刺长度与体长的比例（25 - 27.8% 对 9.5 - 7%）。它与马拉科米斯细颈线虫的区别在于尾翼的形态以及表皮嵴在矢状轴上的定向轴角度。裂尾新属线虫与1976年的杜雷特 - 德塞特和克里希纳斯瓦米的裂尾属（Fissicauda）相关，其区别在于没有龙骨，身体各面的嵴不连续，背叶深深分开。它与该属的不同之处在于嵴的结构不同、尾翼的形态（第2根尾翼非常小，第3根尾翼强烈发育，第8根尾翼起源于第2至6根尾翼的共同主干）以及雌性有尾尖。
