Boysidia Ancey, 1881

Genus Boysidia Ancey, 1881

Pupa ( Boysidia) Ancey, 1881: 373 .

Diagnosis.

The genus Boysidia remains unrevised. This is urgently needed because many species are misunderstood due to poor original descriptions / drawings or the uncertain status of type specimens. The genus currently includes the following species: Boysidia chiangmaiensis Panha & J. B. Burch, 2002 , B. conspicua (Möllendorff, 1885) , B. dilamellaris D. - N. Chen, Y. - H. Liu & W. - X. Wu, 1995 , B. dorsata ( Ancey, 1881) , B. gracilis F. Haas, 1937 , B. guiyangensis T. - C. Luo, D. - N. Chen, G. - Q. Zhang, La. Zhang, Li Zhang & T. - W. Li, 1998 , B. hangchowensis (Pilsbry & Y. Hirase, 1908) , B. houaphanica Inkhavilay & Sutcharit, 2024 , B. huangguoshuensis T. - C. Luo, D. - N. Chen & G. - Q. Zhang, 2000 , B. hunana (Gredler, 1881) , B. jinpingensis M. Tian, B. Fao & Y. - X. Chen, 2015 , B. nanjiangensis Z. - L. Zhang, W. - H. Zhang & T. - C. Luo, 2011 , B. orientalis B. Rensch, 1935 , B. phatangensis Dumrongrojwattana & Assawawattagee, 2018 , B. ringens van Benthem Jutting, 1950 ; B. robusta Bavay & Dautzenberg, 1912 , B. shilinensis D. - N. Chen, M. Wu & G. - Q. Zhang, 1999 , B. strophostoma (Möllendorff, 1885) , B. taibaiensis D. - N. Chen, M. Wu & G. - Q. Zhang, 1999 , B. tamtouriana Pokryszko & Auffenberg, 2009 , B. tholos Panha & J. B. Burch, 2002 , B. tongguanensis D. - N. Chen & W. - H. Zhang, 2002 , B. xianfengensis W. - H. Zhang, D. - N. Chen & W. - C. Zhou, 2014 , B. xiaoguanensis W. - H. Zhang, D. - N. Chen & W. - C. Zhou, 2014 , B. xishanensis D. - N. Chen, M. Wu & G. - Q. Zhang, 1999 , B. xiuwenensis W. - H. Zhang, T. - C. Luo & W. - C. Zhou, 2010 .

The species listed below are excluded from the genus Bensonella and transferred to Boysidia due to the following traits (not shared among all these species): i) apertural dentition more similar to Boysidia (columellar lamella very strong and long, absence of three barriers on the parietal side); ii) surface sculpture similar to Boysidia (radial growth lines, no spiral striae); iii) larger shell sizes (frequently over 4 mm), which is more common in Boysidia representatives.