28 Rishetia baculina (Blanford, 1871) comb. nov.

Fig. 13 D

Glessula baculina Blanford, 1871: 43, 44, pl. 2, fig. 6. Type locality: Khersiong Himalayae Sikkimensis. Beddome 1906: 160. Gude 1914: 379, 380. Godwin-Austen 1920: 14–16, pl. 159, fig. 7. Ramakrishna et al. 2010: 153.

Achatina (Electra) baculina — Hanley and Theobald 1873: 33, pl. 78, fig. 6.

Achatina baculina — Pfeiffer 1876: 291.

Stenogyra (Glessula) baculin a — Nevill 1878: 170.

Stenogyra (Subulina) baculina — Pfeiffer and Clessin 1881: 327.

Glessula tenuispira var. baculina — Pilsbry 1909: 88, 89, pl. 9, fig. 2.

Type specimens.

Syntypes NHMUK 1909.3. 15.9 [re-registered in error as 19850144] (3 shells; Fig. 13 D) ex. Godwin-Austen ex. Blanford collection from Kursiong, Darjiling .

Diagnosis.

Shell slender, elongate turreted and rapidly attenuated; apex rounded; subsequent whorls with fine and equally spaced radial ribs throughout. Suture impressed and whorls slightly convex. Aperture obliquely ovate; columella strong, concave, and truncated.

Distribution.

This species was originally discovered in India and later reported from the Magway Region, Myanmar (Godwin-Austen 1920).

Remarks.

Godwin-Austen (1920: 15) stated that specimens identified to this species in the Beddome collection were collected from ‘ Thyet Myo’ [Thayet District, Magway Region]. However, the Myanmar specimens show noticeable differences from the type specimens in having a more attenuated apex, and larger and broader aperture.