The genus Diplommatina Benson, 1849 (Gastropoda: Caenogastropoda: Diplommatinidae) in Nepal, with the description of seven new species
Author
Budha, Prem B.
University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu, Nepal. & Corresponding author: prembudha @ yahoo. com
prembudha@yahoo.com
Author
Naggs, Fred
Natural History Museum, Cromwell Road, London, SW 7 5 BD, UK. & Email: f. naggs @ nhm. ac. uk
f.naggs@nhm.ac.uk
Author
Backeljau, Thierry
University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B- 1000, Brussels, Belgium. & Email: thierry. backeljau @ naturalsciences. be
thierry.backeljau@naturalsciences.be
text
European Journal of Taxonomy
2017
2017-07-21
337
1
30
journal article
22067
10.5852/ejt.2017.337
5a7f73c5-5646-446f-a72c-3ea18d8f634f
2118-9773
3832483
2669CB69-5064-4B5D-AC25-856680E3B9AA
Diplommatina sperata
W.T.
Blanford, 1862
Figs 8B
,
9N
Diplommatina sperata
W.T.
Blanford, 1862: 143
.
Diplommatina sperata
–
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
). One parietalis, distinct towards the aperture (
Fig. 8B
3
). One vertical palatalis along the constriction. Horizontal palatalis absent (
Fig. 9N
). Columellaris weak. Columellar tooth distinct. Protoconch smooth, Wh 1.5–2.0, with minute pits evenly distributed, radial ribs absent (
Fig. 8B
1
). 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
2
, B
4
). 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
.