Inkhavilay Khamla, Siriboon Thanit, Sutcharit Chirasak, Rowson Ben, Panha Somsak
Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Department of Natural Sciences, National Museum of Wales, Cathays Park, Cardiff CF10 3NP, United Kingdom.
Zookeys. 2016 May 16(589):23-53. doi: 10.3897/zookeys.589.7933. eCollection 2016.
The family Streptaxidae in Laos is revised. Twelve species are known, mainly from limestone areas, in the genera Discartemon Pfeiffer, 1856, Perrottetia Kobelt, 1905, Haploptychius Möllendorff, 1906, and Indoartemon Forcart, 1946. Three new species, Perrottetia unidentata sp. n. and Perrottetia megadentata sp. n. from northern and central Laos, and Indoartemon diodonta sp. n. from central Laos, are described. All eight species of these three genera previously recorded from Laos are revised and discussed based on examined material from Laos, Cambodia, Vietnam and Thailand. Type material was examined and lectotypes are designated. Details of genital anatomy and radulae are provided, including the first detailed genitalia and radula descriptions from Haploptychius. Two novelties in Streptaxidae, a vaginal caecum, and the occurrence of aphallic individuals, are reported from Haploptychius pellucens (Pfeiffer, 1863).
老挝的链蜗牛科得到修订。已知有12个物种,主要分布在石灰岩地区,分属于1856年的盘螺属(Discartemon Pfeiffer)、1905年的佩氏螺属(Perrottetia Kobelt)、1906年的单褶螺属(Haploptychius Möllendorff)以及1946年的印支螺属(Indoartemon Forcart)。描述了3个新物种,分别是来自老挝北部和中部的单齿佩氏螺(Perrottetia unidentata sp. n.)和巨齿佩氏螺(Perrottetia megadentata sp. n.),以及来自老挝中部的双齿印支螺(Indoartemon diodonta sp. n.)。基于对来自老挝、柬埔寨、越南和泰国的标本的研究,对先前记录在老挝的这三个属的所有8个物种进行了修订和讨论。检查了模式标本并指定了选模。提供了生殖器解剖结构和齿舌的详细信息,包括单褶螺属的首次详细生殖器和齿舌描述。报道了链蜗牛科的两个新特征,即透明单褶螺(Haploptychius pellucens (Pfeiffer, 1863))中出现的阴道盲囊和无阴茎个体。