A review of the genus Pupopsis Gredler, 1898 (Gastropoda: Stylommatophora: Enidae), with the descriptions of eight new species from China
Author
Wu, Min
Author
Gao, Linhui
text
Zootaxa
2010
2725
1
27
journal article
46921
10.5281/zenodo.199982
558b2fa1-879c-44e4-956d-9abd9c9a249a
1175-5326
199982
8.
Pupopsis maoxian
sp. nov.
Figs. 1
,
3
F, 8E;
Table 2
Type
material.
Holotype
: HBUMM-01023–specimen 1 (fms);
5 km
from Fengyi Town on the road to Wenchuan County,
1574 m
a.s.l., 31°39ʹ35.4ʹ N, 103°48ʹ48.7ʹ E,
Maoxian
County, NW Sichuan,
China
,
2004–X–11
, leg. M. Wu.
Paratypes
: HBUMM-01023–specimen 2 (fms), same data as
holotype
; HBUMM-01794–specimen 1 (broken fms), Hongqi Hill (ca.
2 km
south of the town of
Maoxian
),
Maoxian
County, NW Sichuan,
China
,
2004–IX
, leg. M. Wu.
Type
locality.
5 km
from Fengyi Town on the road to Wenchuan County,
Maoxian
County, NW Sichuan.
Material examined.
Type
material.
Distribution.
Sichuan (
Maoxian
County).
Etymology.
The new species is named after the county name “
Maoxian
.” The epithet is a noun in apposition.
Diagnosis.
Shell with 8.125 whorls. Height 8.8–8.9, diam. maj. 2.2–3.4. Parietal tooth absent. Columellar tooth prominent and expanded inward. Palatal wall with a ridge-like tooth.
Shell.
Fusiform; apex not acuminate; dextral; thin-shelled; solid; semitranslucent; glossy; with 8.125–8.125– 8.125 whorls. Whorls never spirally grooved; convex. Embryonic shell smooth; polished; with 1.500–1.563–1.625 whorls. Postnuclear whorls wrinkled. Suture simple. Last whorl gradually ascending toward aperture; rounded at periphery. Shell 8.8–8.8–8.9 high; 2.2–2.8–
3.4 in
diam. maj. Height/diam. maj. ratio 2.64–3.36–4.08. Aperture ovate; slightly oblique; its insertions separated; 1.8–2.3–2.8 high, 2.0–2.1–2.1 wide. Ratio of shell height to aperture height 3.17–3.97–4.77. Peristome expanded; sharp. Palatal margin rounded. Palatal tooth present, ridgelike, extending approximately 1.25 whorls inward. Parietal callus indistinct; with angular tubercle. Parietal tooth absent. Columellar margin reflexed; with one prominent tooth which is expanded inward. Umbilicus a narrow slit. Shell uniformly light brownish-white; aperture white.
Remarks.
This new species is grouped into the genus
Pupopsis
because of its typical apertural armature. The unique shell contour with a pointed apex and a narrowed body whorl, and the combination of the absence of a parietal tooth and the presence of both palatal, ridge-like tooth and columellar tooth set
P. m a o x i a n
apart from all other species in the genus.
This new species lives in a habitat charaterised by seasonal change of aridity and wetness. The detailed environmental characters are almost the same as described in
Wu
et al
. (2003)
for
Cathaica
(
Pliocathaica
)
radiata
Pilsbry, 1934
.