A molecular and conchological dissection of the "scaly" Georissa of Malaysian Borneo (Gastropoda, Neritimorpha, Hydrocenidae)

作者：Khalik Mohd Zacaery^*; Hendriks Kasper; Vermeulen Jaap J; Schilthuizen Menno

来源：ZooKeys, 2018, 773(773): 1-55.

DOI：10.3897/zookeys.773.24878

• Gastropods
• land snail
• limestone karst
• Malaysian Borneo
• micro-computed tomography
• Sabah
• Sarawak
• species delimitation

The Bornean hydrocenids have so far been understudied compared to other non-pulmonate snails in this region. In the present study, we review a first group of minute land snail species belonging to the genus Georissa (Gastropoda, Hydrocenidae) from Malaysian Borneo. This group is restricted to the species with conspicuous scale-like sculpture on the shell. Based on materials from recent fieldwork, museums, and personal collections, Malaysian Borneo hydrocenids are more complex and diverse in shell characters than previously anticipated. Here, a molecular, conchological, and biogeographic study of this "scaly group" is presented. We recognise 13 species of which six are new to science, namely Georissa anyiensis sp. n., Georissa muluensis sp. n., Georissa bauensis sp. n., Georissa silaburensis sp. n., Georissa kinabatanganensis sp. n., and Georissa sepulutensis sp. n.

• 出版日期2018-7-9