Tropidauchenia giardi ( Fischer, 1898 )

Dedov, Ivailo, Vu, Quang Manh, Le, Chi Toan, Tra, Van Tung & Szekeres, Miklos, 2025, The Clausiliidae (Gastropoda: Stylommatophora) of the Tam Dao National Park, Vietnam, Acta Zoologica Bulgarica 77 (1), pp. 41-48 : 42

Tropidauchenia giardi ( Fischer, 1898)

( Fig. 1A)

Clausilia giardi Fischer, 1898: 323 , fig. 2, pl. 18, figs 22–27

Type locality: Ma Phuc Pass (Cao Bang Province) .

Locality data: Tam Dao N. P. ( Hoang et al. 2012).

Distribution: In Vietnam, this species has been known from the provinces of Cao Bang (eastern part) and Lang Son (northern part). It also occurs in the neighbouring Longzhou County, Guangxi Province ( China).

Habitat: Limestone cliffs.

Remark: The reported occurrence record from the Tam Dao N. P. ( Hoang et al. 2012) is surprising because of the relatively large distance from the hitherto known distribution area of T. giardi . Furthermore, the predominantly volcanic Tam Dao Range and some of the habitats (i.e., wastelands and farmlands) reported by Hoang et al. (2012) are not suitable for this obligate limestone-dwelling species. Therefore, this locality information needs confirmation.