Diplommatina munipurensis Godwin-Austen, 1892

Figs 5B, 9H

Diplommatina munipurensis Godwin-Austen, 1892: 518 .

Diplommatina munipurensis – Godwin-Austen 1897: 14, pl. 66, fig. 6. — Gude 1921: 323. Diplommatina (Diplommatina) munipurensis – Kobelt 1902: 438. — Budha et al. 2015: 7.

Diagnosis

Measurements (n = 10): SH 2.5–2.6 mm, SW 1.3–1.4 mm, Wh 6.0–6.5. Dextral, well rounded, regularly increasing, penultimate and body whorls nearly equal in width, suture impressed. Constriction at the middle of the parietal wall (Fig. 9H). One parietalis, moderate (Fig. 5B 3). One vertical palatalis, which runs along the constriction, but does not reach the lower half of the whorl. No horizontal palatalis (Fig. 9H). Columellaris close to the umbilicus. Columellar tooth weak. Protoconch smooth, Wh approx 2.0, with small pits distributed all over, no radial ribs (Fig. 5B 1). Teleoconch with dense radial ribs; about 8–10 ribs/ 0.5 mm on the penultimate whorl; 10–14 ribs/ 0.5 mm on the body whorl towards the aperture (Fig. 5B 2, B 4). Fine spiral striation present. Umbilicus closed. Aperture circular, parietal wall thin and straight. Peristome with two close lips; angular edge of the peristome straight; outer palatal lip rounded; basal lip along the columellar margin slightly curved; inner lip thin. Operculum paucispiral, corneous, thin, transparent, slightly concave, outer surface smooth, inner surface with raised edge at the central portion.

Material examined

NEPAL: 6 shells, Syabrubesi, above Lama Hotel, Langtang National Park, 2635 m, 28.197564 N, 85.455117 E, 13 May 2008, P.B. Budha leg. (CDZMTU 039); 5 shells, Syabru, Langtang National Park, 3277 m, 28.105855 N, 85.326567 E, 6 Jun. 2007, P.B. Budha leg. (CDZMTU 040); 7 shells, Phulchowki Hill, Lalitpur District, 2483 m, 27.57159 N, 85.401647 E, 4 May 2007, P.B. Budha leg. (CDZMTU 041).

Remarks

Godwin-Austen (1892) gave the type locality as “South of the Barak River, between the Mao villages and Munipur” and noted that “from the number of specimens found, this appears a very abundant species; I never got anything like it in the Khasi Hills to the west”.