Makarikov Arseny A, Tkach Vasyl V, Bush Sarah E
Institute of Systematics and Ecology of Animals, Siberian Branch, Russian Academy of Sciences, Frunze Street 11, 630091 Novosibirsk, Russia.
J Parasitol. 2013 Oct;99(5):847-55. doi: 10.1645/12-173.1. Epub 2013 May 16.
Two previously unrecognized species of the genus Hymenolepis are described based on specimens obtained from murid rodent species Bullimus luzonicus , Apomys microdon , and Rattus everetti collected on Luzon Island, Philippines. Hymenolepis bicauda n. sp. differs from all known Hymenolepis spp. in relative position of the poral dorsal and ventral osmoregulatory canals, gravid uterus occupying less than half the length of proglottid, relatively few eggs, and the highly characteristic longitudinal split of proglottids at the end of the gravid strobila. Hymenolepis haukisalmii n. sp. differs from all known Hymenolepis spp. in the relative position of both poral and aporal dorsal and ventral osmoregulatory canals and uterus lacking dorsal and ventral diverticula. The shift in the relative position of the dorsal and ventral osmoregulatory canals was not known in Hymenolepis from rodents in other regions of the world and is reminiscent of the situation observed in Hymenolepis erinacei, parasitic in hedgehogs, and members of the genus Talpolepis, parasitic in moles. The cosmopolitan species Hymenolepis diminuta was the only member of the genus previously reported from the Philippines.
基于从菲律宾吕宋岛采集的鼠科啮齿动物吕宋稻鼠、小齿姬鼠和埃氏鼠的标本，描述了膜壳绦虫属两个此前未被识别的物种。双尾膜壳绦虫新种在孔道背腹渗透压调节管的相对位置、妊娠子宫占节片长度不到一半、虫卵相对较少以及妊娠节片链末端节片高度特征性的纵向裂开方面，与所有已知的膜壳绦虫物种不同。豪基萨尔米膜壳绦虫新种在孔道和非孔道背腹渗透压调节管的相对位置以及子宫缺乏背腹憩室方面，与所有已知的膜壳绦虫物种不同。背腹渗透压调节管相对位置的变化在世界其他地区的啮齿动物膜壳绦虫中并不为人所知，这让人想起在刺猬体内寄生的刺猬膜壳绦虫以及鼹鼠体内寄生的塔尔波列绦虫属成员中观察到的情况。世界性物种微小膜壳绦虫是此前报道过的该属中唯一来自菲律宾的成员。
