Pupinidius anocamptus Moellendorff 1901
Creators: name: Wu, Min
name: Zheng, Wei
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Enidae
Pupinidius
Pupinidius anocamptus

description: 1. Pupinidius anocamptus (Moellendorff, 1901)
Figs 1, 2A, 8 A, 9
Buliminus (Pupinidius) anocamptus Moellendorff, 1901: 346, pl.14, figs 11, 12; Kobelt, 1902: 850, pl. 121, figs 11–12. Material examined. HBUMM-00332 (eight mature specimens. All measured; specimen-6 dissected): Nanping, (33°12΄ N, 104°12΄ E), Sichuan, China, 2004-V-7, coll. M.Wu.
Distribution. Sichuan (type locality).
Type locality. Nanping (Sichuan, China—previously Gansu, as in the original description).
Diagnosis. Shell bandless; not striate. Aperture with angular tubercle. Most swollen part at penultimate and body whorls. With 7.250–7.750 whorls; height 14.0–17.9, diam. maj. 7.1–8.7. Penis without penial caecum; internally with more than two fine longitudinal pilasters. Papilla developed by fused distal pilasters forming V-shaped structure present. Epiphallus straight. Epiphallic caecum present.
Re-description of shell. Pointed-ovate; apex protruded. Most swollen part at penultimate and body whorls. Shell dextral; thin; solid; semitranslucent; glossy; with 7.250–7.563–7.750 whorls. Whorls not speckled; not spirally grooved, not shouldered, convex. Growth lines usually not very clear. Embryonic shell smooth; polished, with 1.375–1.609–1.750 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 14.0–15.9–17.9 high; 7.1–7.9– 8.7 in diam. maj. Height/width ratio 1.81–2.01–2.28. Aperture completely attached to body whorl; ovate; not adnate; rather oblique; not armed; with angular tubercle; in a plane; 6.1–7.0–7.7 high, 5.2–5.6–6.6 wide. Ratio of shell height to aperture height 2.09–2.28–2.41. Peristome reflexed, straight and not curved backward; expanded; thickened. Parietal callus indistinct. Columellar margin reflexed. Umbilicus narrowly open. Shell uniformly coloured; dark brown, aperture white or reddish tinted.
Genitalia. Vas deferens long; proximally swollen; entering epiphallus apically with distinct demarcation. Epiphallus long; cylindrical; of uniform thickness; generally almost straight; externally smooth. Epiphallic caecum blunt apically; located near vas deferens entrance. Flagellum present; short; tubular; proximally normal; with tip blunt. Penis terminates distally at epiphallus; clavate; without penial caecum; distally enlarged; thin-walled; internally with more than two fine longitudinal pilasters; with one V-shaped pilaster. Vshaped pilaster with proximal free end approaching at penial retractor insertion. A papilla developed by fused proximal of V-shaped structure present. Papilla in median size. Penis without process. Penial verge absent. Penial appendix rather long; branched off from penis at some distance from atrium; divided into sections including A-1+A-2, A-3 and A-4+A-5. A-1 and A-2 fused, interiorly with fine longitudinal pilasters. A-2 near A-3 internally without a ring of papilla. A-2 and A-3 not fused. A-3 opening into A-2 by short papilla. Boundary between A-4 and A-5 indistinct. A-5 short; straight. Penial retractor biramous; attaching to penis and to A-2 near the insertion near A-3; with penial retractor arms arising from diaphragm separately. Additional retractor other than penial or appendicular retractor absent. Muscular band connecting vagina and epiphallus absent. Atrium short; without retractor. Free oviduct much shorter than vagina. Vagina moderately long; not swollen; straight; not lined with loose, spongy tissue; unpigmented. Bursa copulatrix duct moderately long; proximally straight. Bursa copulatrix with stalk; without apical ligament; normal in size; with long neck; well defined. Diverticle longer than reservoir; expanded especially terminally. Bursa copulatrix and diverticle distinguishable; forked more distally from their base. Spermatophore unknown.
Measurement of genitalia. P: 2.6; Ep: 10.3; Fl: 0.7. VD: 7.4. Va: 3.7; FO: 0.7; BCD: 4.6; BC: 1.1; D: 5.6. A-1+A-2: 4.1. A3: 1.4. A-4+A-5: 13.9 (in HBUMM-00332-specimen 6).
description: Published as part of Wu, Min & Zheng, Wei, 2009, A review of Chinese Pupinidius Moellendorff (Gastropoda, Stylommatophora: Enidae), with the description of a new species, pp. 1-31 in Zootaxa 2053 on pages 3-5, DOI: 10.5281/zenodo.186646