Diplommatina sperata W.T. Blanford, 1862

Budha, Prem B., Naggs, Fred & Backeljau, Thierry, 2017, The genus Diplommatina Benson, 1849 (Gastropoda: Caenogastropoda: Diplommatinidae) in Nepal, with the description of seven new species, European Journal of Taxonomy 337, pp. 1-30 : 22

publication ID	https://doi.org/ 10.5852/ejt.2017.337
publication LSID	lsid:zoobank.org:pub:2669CB69-5064-4B5D-AC25-856680E3B9AA
DOI	https://doi.org/10.5281/zenodo.3850720
persistent identifier	https://treatment.plazi.org/id/03C6CF41-FFF1-FFFE-FDB9-4501D7C6F936
treatment provided by	Carolina
scientific name	Diplommatina sperata W.T. Blanford, 1862
status

Treatment

Diplommatina sperata W.T. Blanford, 1862 View in CoL

Figs 8B View Fig , 9N View Fig

Diplommatina sperata W.T. Blanford, 1862: 143 View in CoL .

Diplommatina sperata View in CoL – Nevill 1878: 284. — Godwin-Austen 1886: 179, pl. 44, figs 5, 5a. — Kuznetsov & Schileyko 1997: 140.

Diagnosis

Measurements (n = 3): SH 3.0– 3.2 mm, SW 1.5–1.7 mm, Wh 7.0. Dextral, penultimate whorl and the body whorl nearly equal in width, constriction at the middle of the parietal lip above the aperture ( Fig. 9N View Fig ). One parietalis, distinct towards the aperture ( Fig. 8B View Fig 3 View Fig ). One vertical palatalis along the constriction. Horizontal palatalis absent ( Fig. 9N View Fig ). Columellaris weak. Columellar tooth distinct. Protoconch smooth, Wh 1.5–2.0, with minute pits evenly distributed, radial ribs absent ( Fig. 8B View Fig 1 View Fig ). Teleoconch with strong, widely spaced, radial ribs; about 8–10 ribs/ 0.5 mm on the penultimate whorl; 13–16 ribs/ 0.5 mm on the body whorl towards the aperture ( Fig. 8B View Fig 2 View Fig , B 4 View Fig ). Spiral striation distinct. Umbilicus open. Aperture circular. Peristome with two close lips; under high magnification 6–8 thin ribs seen between the lips; basal columellar lip slightly directed towards the columella. Parietal wall of aperture not reaching the middle of the body whorl.

Material examined

NEPAL: 2 shells, Deurali, Langtang National Park, 2621 m, 28.1038 N, 85.3248 E, 5 Jun. 2007, P.B. Budha leg. ( CDZMTU 062); 1 shell, Baghdwar, Chapali, Shivapuri-Nagarjun National Park, 2532 m, 27.8125 N, 85.3919 E, 23 Jun. 2007, P.B. Budha leg. ( CDZMTU 063).

Remarks

Diplommatina sperata was originally described by Blanford (1862) from Myanmar (“in montibus Arakan a Pegu secernentibus”), but Kuznetsov & Schileyko (1997) reported this species from steep rocks in dense bushes in the Solukhumbu District, eastern Nepal. Nepalese shells are thinner than the alleged syntypes in NHM and have much thinner peristomal lips. Nevertheless, we provisionally assign the above Nepalese shells to D. sperata .