Diplommatina silvicola Godwin-Austen 1886
- 1. University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu, Nepal. & Corresponding author: prembudha @ yahoo. com
- 2. Natural History Museum, Cromwell Road, London, SW 7 5 BD, UK. & Email: f. naggs @ nhm. ac. uk
- 3. University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B- 1000, Brussels, Belgium. & Email: thierry. backeljau @ naturalsciences. be
Description
Diplommatina silvicola Godwin-Austen, 1886
Figs 8A, 9M
Diplommatina (Diplommatina) silvicola Godwin-Austen, 1886: 178.
Diplommatina (Diplommatina) silvicola – Gude 1921: 335. — Ramakrishna et al. 2010: 92. — Budha et al. 2015: 7.
DiagnosisMeasurements (n = 7): SH 2.3–2.5 mm, SW 1.2–1.3 mm, Wh 6.0–6.5. Dextral, penultimate and body whorls nearly equal in width, constriction at the middle of the parietal lip above the aperture (Fig. 9M). One long parietalis (Fig. 8A 3). One vertical palatalis. Horizontal palatalis absent (Fig. 9M). Columellaris prominent. Columellar tooth distinct. Protoconch smooth, Wh 1.5, with minute pits, radial ribs absent (Fig. 8A 1). Teleoconch with strong, widely spaced radial ribs, about 4–6 ribs/ 0.5 mm on the penultimate whorl; 5–7 ribs/ 0.5 mm on the body whorl towards the aperture (Fig. 8A 2, A 4). Spiral striation distinct. Umbilicus closed. Aperture circular. Peristome usually simple, but with two lips in some adult shells; inner lip very thick and elevated. Columellar margin of the peristome straight. Parietal wall of aperture not extending to the body whorl.
Material examinedPossible syntype
INDIA: 1 shell, [D. silvicola Godwin-Austen 1886 Jatinga Valley, N. Cachar, India. W.F. Webb, ex. coll. Godwin-Austen 06.07.1928] (RBINS 525561, MT 1104).
Other material examined
NEPAL: 11 shells, Panitanki, Balaju, Kathmandu at the base of a sandstone hill, Shivapuri-Nagarjun National Park, 1356 m, 27.736501 N, 85.298484 E, 14 Apr. 2008, P.B. Budha leg. (CDZMTU 050); 2 shells, Raniban, Balaju, Kathmandu, 1780–1820 m, 27.745997 N, 85.287240 E, 4 Jan. 2009, Srijanal Khanal leg. (CDZMTU 050b).
RemarksDiplommatina silvicola is a very distinct species due to its ovate and transparent shell.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Diplommatinidae
- Genus
- Diplommatina
- Kingdom
- Animalia
- Order
- Architaenioglossa
- Phylum
- Mollusca
- Scientific name authorship
- Godwin-Austen
- Species
- silvicola
- Taxon rank
- species
- Taxonomic concept label
- Diplommatina silvicola Godwin-Austen, 1886 sec. Budha, Naggs & Backeljau, 2017
References
- Godwin-Austen H. H. 1886. Land and freshwater Mollusca of India. Conchologia Indica 1 (5): 165 - 185.
- Gude G. K. 1921. The fauna of British India. Mollusca-III (Land operculates: Cyclophoridae, Truncatellidae, Assimineidae, Helicinidae). Today & Tomorrow's Printers & Publishers, New Delhi.
- Ramakrishna, Mitra S. C. & Dey A. 2010. Annotated checklist of Indian land molluscs. Records of Zoological Survey of India, Occasional Paper 306: 1 - 359.
- Budha P. B., Naggs F. & Backeljau T. 2015. Annotated checklist of the terrestrial gastropods of Nepal. ZooKeys 492: 1 - 48. https: // doi. org / 10.3897 / zookeys. 492.9175
- Blanford W. T. 1862. Contribution to Indian Malacology, No. III. Descriptions of new operculated land shells from Pegu, Arakan and the Khasi Hills. Journal of the Asiatic Society of Bengal 31: 135 - 145.