Phaedusa dichroa ( Bavay & Dautzenberg, 1899 )

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 : 43

Phaedusa dichroa ( Bavay & Dautzenberg, 1899)

( Fig. 1E )

Clausilia dichroa Bavay & Dautzenberg 1899: 287 , pl. 12, fig. 8

Type locality: Bac Kan .

Locality data: Tam Dao N. P., rain forest, 800–900 m, leg. A. Napolov 1998; Tam Dao N. P. (21.4553°N 105.6386°E), leg. Luong Van Hao 2006.

Distribution: Bac Kan, Lang Son, Vinh Phuc, Son La and Ninh Binh Provinces.

Habitat: Undisturbed forests.

Remark: This species is known only from a few localities in Northern Vietnam.

Figures

Fig. 1. Species of the family Clausiliidae. A. Tropidauchenia giardi (comparative material, China, Guangxi Province, Longzhou County, Wude Xiang). B. Notoptychia polydona, Tam Dao N. P., 1 km NE of the centre of the resort, 1060 m. C. Oospira semipolita, Tam Dao N. P., 800–900 m. D. Oospira vanbuensis, Tam Dao N. P., 800–900 m. E. Phaedusa dichroa, Tam Dao N. P., 800–900 m. F. Phaedusa lypra, Tam Dao N. P., 800–900 m. G. Phaedusa paviei, Tam Dao N. P., 800–900 m. H. Phaedusa phongthoensis (comparative material, Lai Chau Province, Phong Tho). I. Phaedusa stenothyra (comparative material, Ninh Binh Province, Cuc Phuong National Park). J. Selenophaedusa thatkheana (comparative material, Yen Bai Province, Luc Yen District). K. Synprosphyma gastrum, Tam Dao N. P., 1 km NE of the centre of the resort, 1060 m. Scale bar: 10 mm.