Pupinidius chrysalis ( Annandale, 1923 )

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 : 5

2. Pupinidius chrysalis ( Annandale, 1923)

Figs 1 , 2 B–D

Buliminus (Pupinidius) chrysalis Annandale, 1923: 391 , pl. 16, figs 4, 4a. Pupinidius chrysalis Yen, 1942: 254 .

Material examined. NHM-Acc. No. 2136: 1 nearly matured shell (ewh 1.375, wh 5.500, h 23.4, diam. maj. 16.1, aph 11.6, apw 9.2). Gorge in granite above Yangtsa, Mekong Valley 2133–2286 m a.s.l., Zool. Survey of India, Ind. Mus.. NHM-1912.6.27.65 Reg.: 1 fms. Mekong, Tibet. Det. T.C. Yen. NHM-1923.5.24.1-16 Reg.: Paratypes. 5 juveniles, one nearly matured, and 11 fmss (all measured). Gorge in granite above Yangtsa; Mekong Valley 2133–2286 m a.s.l., J.W. Gregory Coll.

Distribution. Yunnan (type locality).

Type locality. Gorge of Mekong River above Yangtse.

Diagnosis. Shell bandless; not striate. Aperture without angular tubercle. Most swollen part at body whorl. With 5.125–6.000 whorls; height 22.7–26.0 ( Annandale, 1923), diam. maj. 12.1–16.1.

Re-description of shell. Cylindrical-conic; apex not protruded. Most swollen part at body whorl. Shell dextral; thin; solid; opaque; glossy; with 5.125–5.750–6.000 whorls. Apical whorls differently tinted. Whorls not speckled; not spirally grooved; not shouldered; flattened. Embryonic shell smooth; polished; with 1.250–1.472–1.625 whorls. Postnuclear whorls smooth. Suture normal, without narrow defined zone on beneath whorl. Last whorl gradually ascending towards aperture; rounded at periphery; without smoothed spiral peripheral depression nor rugate region. Shell 22.7–23.6–25.0 high; 12.1–13.6–15.0 in diam. maj. Height/width ratio 1.57–1.74–1.89. Aperture completely attached to body whorl; ovate; not adnate; almost vertical; not armed; without angular tubercle; 10.2–10.8–11.5 high; 6.9–8.1–8.5 wide. Ratio of shell height to aperture height 2.06–2.18–2.31. Peristome reflexed, without distinct cuff; expanded; sharp. Parietal callus more or less distinct. Columellar margin reflexed. Umbilicus narrowly open. Shell multicoloured; first 3–4 whorls semitransparent and in reddish brown, followed whorls whitish, thickened and opaque; aperture dirty white; not striate; not brightly banded; spirally bandless.

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 2. A, Pupinidius anocamptus (Moellendorff, 1901), HBUMM- 00332 - specimen 1. B – D, Pupinidius chrysalis (Annandale, 1923), 3 type specimens of NHM- 1923.5.24.1 – 16 Reg. E – F, Pupinidius gregorii (Moellendorff, 1901). E, Lectotype, SMF- 42003; F, one specimen of paratypes, SMF- 42004.