Nguyen Anh D, Korsós Zoltán
Institute of Ecology and Biological Resources, No18, Hoangquocviet Road, Caugiay District, Hanoi, Vietnam.
Zookeys. 2011(156):25-40. doi: 10.3897/zookeys.156.2009. Epub 2011 Dec 20.
The East Asian millipede genus Riukiupeltis Verhoeff, 1939 is revised, and is restricted to a single species, Riukiupeltis jamashinai Verhoeff, 1939. Examination of the type specimens and freshly collected material from the Ryukyu Archipelago and Vietnam show that both subsequently allocated species, Riukiupeltis uenoi Murakami, 1975, and Riukiupeltis falcatus (originally Haplogonosoma falcatum Attems, 1953, reallocated by Jeekel 1968), do not belong to this genus; moreover, they are not even congeneric with each other. According to our morphological observations, including the gonopods, Riukiupeltis uenoi is closer to the widespread Chamberlinius hualienensis Wang, 1956, hence we propose the new combination Chamberlinius uenoi (Murakami, 1975), comb. n.Riukiupeltis falcatus, on the other hand, represents a separate, as yet monotypic, genus Simplogonomorphagen. n., distinct both from Haplogonosoma Brölemann, 1916 sensu Golovatch et al. (1995), and from Verhoeff's original Riukiupeltis. Additionally, Simplogonomorpha falcata (Attems, 1953), comb. n is re-described here based on fresh material from Vietnam. A key and colour habitus-illustrations to all three species are also provided here.
东亚马陆属Riukiupeltis Verhoeff，1939年被修订，现仅限于单一物种，即Jamashinai马陆Riukiupeltis jamashinai Verhoeff，1939年。对琉球群岛和越南的模式标本以及新采集的材料进行检查后发现，随后归入该属的两个物种，即上野马陆Riukiupeltis uenoi Murakami，1975年，以及镰状马陆Riukiupeltis falcatus（最初为镰状单角马陆Haplogonosoma falcatum Attems，1953年，1968年由吉克重新归类），并不属于该属；此外，它们甚至彼此也不同属。根据我们包括生殖肢在内的形态学观察，上野马陆与分布广泛的花莲腔马陆Chamberlinius hualienensis Wang，1956年更为接近，因此我们提出新组合Chamberlinius uenoi（Murakami，1975年），新组合。另一方面，镰状马陆代表了一个单独的、迄今为单型的属Simplogonomorphagen。新属，既不同于Golovatch等人（1995年）所定义的1916年的单角马陆属Haplogonosoma Brölemann，也不同于Verhoeff最初的Riukiupeltis属。此外，本文根据来自越南的新鲜材料对镰状单角马陆Simplogonomorpha falcata（Attems，1953年），新组合进行了重新描述。这里还提供了这三个物种的检索表和彩色形态图。
