Diplommatina godawariensis Budha & Naggs sp. nov.

urn:lsid:zoobank.org:act: 2ED01F49-7E8A-4A53-A021-720968DC721A

Figs 4B, 9E

Diagnosis

Measurements (n = 5): SH 3.2–3.5 mm, SW 1.7–1.8 mm, Wh: 6.5–7.0; holotype: SH 3.3 mm, SW 1.8 mm, Wh 7.0. Dextral, penultimate and body whorl nearly equal in width. Constriction at the inner edge of PeP (Fig. 9E). Two parietalis: Prt1 short and strong, Prt2 not very distinct, nearly attached to the sutural wall (Fig. 4B 3). Two vertical palatalis, Vpt1 strong and runs along the constriction, Vpt2 short and small, difficult to distinguish, just above the outer lip of the parietal wall (Fig. 9E). Two horizontal palatalis: both Hpt1 and Hpt2 are thin, situated just above the columella, posterior longer than anterior (Fig. 9E). Columellaris distinct (Fig. 4B 3). Columellar tooth prominent. Protoconch smooth, Wh approx. 2.0, with small pits evenly distributed, no radial ribs (Fig. 4B 1). Teleoconch with radial ribs; about 5–6 ribs/ 0.5 mm on the penultimate whorl; 5–7 ribs/ 0.5 mm on the body whorl towards the aperture (Figs 4B 2, B 4). No spiral striation. Umbilicus closed. Peristome with two lips; outer lip slightly reflected; inner lip thick and forming a thin callus on the penultimate whorl. Angular edge of the peristome rounded. Basal edge of the peristome outwardly directed.

Etymology

The species name refers to the type locality ‘Godawari’.

Type material

Holotype

NEPAL: Godawari, Lalitpur District, 1551 m, mixed forest, 27.589284 N, 85.388309 E, 1 Dec. 2006, P.B. Budha leg. (CDZMTU032).

Paratypes

NEPAL: 5 shells from the type locality, same data as holotype (CDZMTU 033); 2 shells, Godawari, 1551 m, 27.5969 N, 85.3890 E, 30 Apr. 2007, P.B. Budha leg. (CDZMTU 033b).

Remarks

Diplommatina godawariensis sp. nov. is similar to D. diplocheilus Benson, 1857 from Khasi Hills, NE India “Teria Ghat, Khasi Hills” (Hanley & Theobald 1876: pl. 140, figs 2–3), but D. godawariensis sp. nov. has a smaller columellar tooth and a narrower penultimate whorl. The aperture of D. godawariensis sp. nov. is rather similar to that of D. pachycheilus, but this latter species has more tumid apical whorls and its penultimate whorl is slightly narrower than that of D. godawariensis sp. nov.