Taxonomical notes on Chinese camaenids with description of three new species (Gastropoda: Pulmonata)

ABSTRACT

The present study deals with four Chinese camaenid species based on museum collections and newly obtained materials. Pseudiberus liuae Wu, n. sp., diagnosed by two long mucous glands and the smallest shell size in the genus and inhabiting bare rock like other congeneric members, is described from southern Gansu. Aegista (Plectotropis) wardi (Preston, 1912) is conchologically re-described and moved out of Aegista Alber, 1860 to Pseudiberus Ancey, 1887 based on the keeled periphery and the absence of hairs, scales or their scars on the teleoconch, which are present in Aegista but partially absent in Pseudiberus. The first Chinese fluorescent snail Bradybaena qixiaensis Wu & Asami n. sp. is reported from Nanjing, Jiangsu. The species shares many characters with the Japanese fluorescent snail Bradybaena pellucida Kuroda & Habe, 1953 but is distinct in the pattern of microsculpture on the internal surface of the penis. Nesiohelix yeni Wu & Asami n. sp., sympatric with N. moreletiana (Heude, 1882), is distinguished from its congener by possession of a bubble-shaped penial caecum.

Pseudiberus liuae Wu in Wu & Asami, In Press

LSID urn:lsid:zoobank.org:act:3C9299AA-5089-4E43-9B26-85A0D6C23B66

Bradybaena qixiaensis Wu & Asami, In Press

LSID urn:lsid:zoobank.org:act:7991C4D5-5E0B-46DF-8B19-BE26511806CD

Nesiohelix yeni Wu & Asami, In Press

LSID urn:lsid:zoobank.org:act:68CFF173-AACC-4DA8-B347-9ABB5CA569A3

KEYWORDS:

• Bradybaena
• Camaenidae
• Helicoidea
• Nesiohelix
• Pseudiberus

Acknowledgements

We are grateful to Fred Naggs and Jonathan Ablett (BMNH) and Ronald Janssen (SMF) for their help in examination of specimens from museum collections, and Ling Hou (Shinshu University), Qin Xu, Siyang Wang and Yaoxin Fang (Nanjing Unversity) for their help in the field. We thank two anonymous referees and the editor for helpful comments on the manuscript.

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Min Wu http://orcid.org/0000-0002-5434-5544

Additional information

Funding

This study was supported by the National Natural Science Foundation of China [NSFC31071882] and the Ministry of Science and Technology of the People's Republic of China [2006FY120100] to MW and by KAKENHI from Japan Society for the Promotion of Science [24370007B] to TA.