Clostophis sankeyi Benson 1860
Creators: name: Páll-Gergely, Barna
name: Hunyadi, András
name: Grego, Jozef
name: Reischütz, Alexander
name: Buczkó, Krisztina
name: Vermeulen, Jaap J.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Gastrocoptidae
Clostophis
Clostophis sankeyi

description: <i>Clostophis sankeyi</i> Benson, 1860 (Fig. 3A) <i>Clostophis sankeyi</i> Benson, 1860: 95. <i>Clostophis sankeyi</i> — Kobelt, 1902: 484. <i>Clostophis sankeyi</i> — Egorov, 2013: 24. <b>Type locality.</b> "Prope Moulmein, ad cavernas "Farm Caves" dictas" [Farm Caves at 16°32′N 97°42.8′E]. <b>Types examined.</b> Holotype of <i>Clostophis sankeyi</i> (UMZCI.103320). Benson (1860) mentioned in the original description that only a single shell was available. <b>Additional material examined.</b> 1 shell (coll. HA), Myanmar, Mon Province, Mawlamyine centre NEE ca. 26 km, Dhammasa Cave, 8 m a.s.l., 16°30.403′N, 97°48.646′E (locality codes 2018/49a and 20181011A), coll. A. Hunyadi, K. Okubo &amp; J.U. Otani, 11 October 2018; 1 shell (coll. HA), Myanmar, Mon Province, Mawlamyine NE ca. 14 km, Kalagon, Kha Yone Cave, 0 m a.s.l., 16°31.986′N, 97°42.910′E (locality codes: 2018/50 and 20181011B), coll. A. Hunyadi, K. Okubo &amp; J.U. Otani, 11 October 2018. <b>Diagnosis.</b> A <i>Clostophis</i> species with detached and descending last quarter of the body whorl, a comparatively narrow umbilicus, and a weak parietal tooth. <b>Description.</b> Shell conical, upper whorls growing regularly, and seemingly are sunken into the last whorl, i.e., last whorl coils around penultimate whorl more apically in position than it would be expected from the growth rate of initial whorls. Whorls rounded, showing a very slight indication of a blunt shoulder. Tuba (i.e., last quarter whorl) strongly detached from penultimate whorl. Protoconch consisting of 1.5 whorls, pitted and spirally striated. Entire shell with 4.5 whorls. Umbilicus oval doe to the irregularly formed body whorl; occupies ca. one third of the shell width. Entire teleoconch with strong, elevated, rather equidistant spiral striae, and some weak, irregular radial growth lines. Some growth lines close to the suture on dorsal surface strong, almost rib-like. Aperture suboval. Sinulus wide. Parietal tooth weak and relatively short. Peristome expanded but not reflected. <b>Remarks.</b> See under <i>C. proboscideus</i>.
description: Published as part of <i>Páll-Gergely, Barna, Hunyadi, András, Grego, Jozef, Reischütz, Alexander, Buczkó, Krisztina &amp; Vermeulen, Jaap J., 2020, Clostophis Benson, 1860, is not a monotypic diplommatinid but a speciose hypselostomatid (Gastropoda: Eupulmonata), with descriptions of six new species, pp. 350-368 in Raffles Bulletin of Zoology 68</i> on page 352, DOI: 10.26107/RBZ-2020-0052, http://zenodo.org/record/4576861
description: {"references": ["Benson WH (1860) On Clostophis and Rhiostoma, new Burmese genera of land-shells. Annals and Magazine of Natural History, Series 3, 5: 95 - 97.", "Kobelt W (1902) Das Tierreich. Eine Zusammenstellung und Kennzeichnung der rezenten Tierformen. In: Kobelt W (ed.) Verbindung mit der Deutschen Zoologischen Gesellschaft herausgegeben von der Koniglich Preussischen Akademie der Wissenschaften zu Berlin. Mollusca: Cyclophoridae. R. Friedlander und Sohn, Berlin, 662 pp.", "Egorov RV (2013) Treasure of Russian Shells. Supplement 3. Part 3: A review of the genera of the terrestrial pectinibranch molluscs (synopsis mainly based on published data). Littoriniformes: Liareidae, Pupinidae, Diplommatinidae, Alycaeidae, Cochlostomidae. Roman Egorov, Moscow, 61 pp."]}