Pupinidius nanpingensis ambigua ( Moellendorff, 1901 )

Wu, Min & Zheng, Wei, 2009, A review of Chinese Pupinidius Moellendorff (Gastropoda, Stylommatophora: Enidae), with the description of a new species, Zootaxa 2053, pp. 1-31 : 13

8. Pupinidius nanpingensis ambigua ( Moellendorff, 1901)

Figs 1 , 3 E–F

Buliminus (Pupinidius) nanpingensis ambigua Moellendorff, 1901: 347 , pl. 14, figs 18, 19; Kobelt, 1902: 850. Pupinidius nanpingensis ambigua Yen, 1939: 84 , pl. 8, fig. 2.

Material examined. SMF-41996: Lectotype. Nan-ping, Kansu, China. Slg. Moellendorff. SMF-41997: Paratypes. 3 fmss. Nan-ping, Kansu, China. Slg. Moellendorff.

Distribution. Sichuan (type locality).

Type locality. Nanping (Sichuan).

Diagnosis. Shell bandless; not striate. Aperture with or without angular tubercle. Most swollen part at body whorl. With 6.000–6.125 whorls; height 17.2–20.1, diam. maj. 9.5–10.7.

Re-description of shell. Bullet-shaped; apex slightly protruded. Most swollen part at body whorl. Shell dextral; thin; solid; opaque; glossy; not speckled; not spirally grooved; with 6.000–6.063–6.125 whorls. Whorls not shouldered; flattened. Growth lines usually not very clear. Embryonic shell smooth; polished. Embryonic shell with 1.375–1.500–1.625 whorls. Postnuclear whorls smooth. Suture normal, without narrow defined zone on beneath whorl. Last whorl gradually ascending towards aperture, or straight in front (in one paratype); rounded at periphery; without smoothed spiral peripheral depression nor rugate region. Shell 17.2–18.4–20.1 high; 9.5–10.0– 10.7 in diam. maj. Height/width ratio 1.81–1.84–1.89. Aperture in a plane; completely attached to body whorl; truncate-ovate; not adnate; oblique; not armed; with angular tubercle, or without angular tubercle; 8.4–8.8–9.7 high; 6.5–6.8–7.2 wide. Ratio of shell height to aperture height 2.05–2.09–2.13. Peristome reflexed with distinct cuff. Cuff made by the reflexed peristome straight and not curved backward. Peristome expanded; sharp. Parietal callus indistinct. Columellar margin reflexed. Columella vertical (or even bending axially). Outer edge of columellar lip vertical. Umbilicus narrowly open. Shell uniformly coloured in redish brown. Aperture brownish white.

Figures

FIGURE 1. Distribution map of Pupinidius spp. Red dot, Pupinidius anocamptus, P. nanpingensis nanpingensis and P. nanpingensis ambigua; red circle, P. porrectus; black dot, P. pupinella altispirus; black circle, P. chrysalis; blue dot, P. obrutschewi contractus and P. pupinella pupinella; blue circle: P. latilabrum; green dot, P. melinostoma, P. nanpingensis nanpingensis and P. wenxian sp. nov.; yellow dot, P. obrutschewi obrutschewi and P. streptaxis; yellow circle, P. porrecta pygmaea. P. pupinidius and P. gregorii have not been mapped here due to the unrecognizable locality names. Although the original description of the type locality of P. chrysalis is not accurate and geographically wrong, mapping of the species is possible here based only on the recognized information therein.

FIGURE 3. A – B, Pupinidius latilabrum (Annandale, 1923). A, NHM-Ellis Coln Acc. No. 2136, original series; B, HBUMM- 04328 - specimen 1. C – D, Pupinidius melinostoma melinostoma (Moellendorff, 1901). C, HBUMM- 05577 - specimen 6; D, Lectotype, SMF- 41978. E – F, Pupinidius nanpingensis ambigua (Moellendorff, 1901). E, Lectotype, SMF- 41996; F, one paratype, SMF- 41997.