Rishetia pertenuis subsp. pertenuis Man & Ablett & Lwin & Sutcharit & Panha 2024, comb. nov.
Authors/Creators
- 1. Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand & Department of Zoology, University of Yangon, University Avenue Road, Kamayut Township 11041, Yangon, Myanmar
- 2. Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW 7 5 BD, UK
- 3. Fauna and Flora International, No. 35, 3 rd Floor, Shan Gone Condo, Myay Ni Gone Market Street, Sanchaung Township, Yangon, Myanmar
- 4. Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- 5. Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand & Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand
Description
35
Rishetia pertenuis pertenuis(Blanford, 1865) comb. nov.Fig. 15 A – E
Achatina pertenuis Blanford, 1865: 79. Type locality: Tongoop, Arakan [Taungup Township, Rakhine State, Myanmar]. Pfeiffer 1868: 237.
Achatina (Electra) pertenuis — Hanley and Theobald 1870: 9, pl. 18, fig. 5.
Stenogyra (Glessula) pertenuis — Nevill 1878: 169.
Stenogyra (Subulina) pertenuis — Pfeiffer and Clessin 1881: 327.
Glessula pertenuis — Beddome 1906: 160. Gude 1914: 380. Godwin-Austen 1920: 52–54, pls 164, fig. 11, pl. 159, figs 1, 2. Ramakrishna et al. 2010: 170.
Glessula tenuispira var. pertenuis — Pilsbry 1909: 89, 90, pl. 9, fig. 3.
Type specimen.
Possible syntypes NHMUK 1906.2. 2.239 (7 shells; Fig. 15 A, B) ex. Blanford collection from Henzada, Pegu and Tongoop, Arakan.
Other material.
NHMUK 1888.12. 4.1229–31 (3 shells; Fig. 15 D, E) from Pegu. NHMUK 20230921 (5 shells) from Tongoop, Arakan (Fig. 15 C).
Diagnosis.
Shell slender, elongate turreted, and rapidly attenuated near apical whorls; apex rounded; subsequent whorls nearly smooth, fine growth lines, and with equally spaced ridges near suture. Suture impressed and whorls slightly convex. Aperture ovate; columella concave and truncated.
Distribution.
This species was reported from several places in Myanmar: Henzada [Hinthada City, Ayeyarwady Region], Thayet Myo [Thayet City, Thayet District, Magway Region], Pegu [Bago Region], and Tongoop, Arakan [Taungup Township, Thandwe District, Rakhine State] (Nevill 1878; Gude 1914). It was also reported from Meghalaya State, India (Ramakrishna et al. 2010).
Remarks.
The original description does not clearly state how many specimens were available to the author, although only one set of measurements was given. The NHMUK collection contains a lot of seven specimens from the Blanford collection with this species name. However, this is a mixed specimen lot of the same species as it consists of two collection localities, ‘ Henzada, Pegu’ and ‘ Tongoop, Arakan’, where only the latter was mentioned in the original description as the type locality. Therefore, this specimen lot NHMUK 1906.2. 2.239 is considered as possible syntypes, from which two specimens are illustrated herein.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- NHMUK
- Material sample ID
- 1906.2. 2.239
- Scientific name authorship
- Man & Ablett & Lwin & Sutcharit & Panha
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Stylommatophora
- Family
- Subulinidae
- Genus
- Rishetia
- Species
- pertenuis
- Taxon rank
- subSpecies
- Taxonomic status
- comb. nov.
- Type status
- syntype
- Taxonomic concept label
- Rishetia pertenuis subsp. pertenuis (Blanford, 1865) sec. Man, Ablett, Lwin, Sutcharit & Panha, 2024
References
- Blanford WT (1865) Contributions to Indian Malacology, No. 5. Description of new land shells from Arakan, Pegu, and Ava; with notes on the distributions of described species. Journal of the Asiatic Society of Bengal 34 (2): 66 - 105. https: // www. biodiversitylibrary. org / item / 114408
- Pfeiffer L (1868) Monographia Heliceorum Viventium: sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum. Volumen Sextum. Lipsiae: F. A. Brockhaus, 598 pp. https://www.biodiversitylibrary.org/item/46666
- Hanley SCT, Theobald W (1870 (1870); pp 19–28, pls 41–60 (1872); pp 29–34, pls 61–80 (1873). pp 35–48, pls 81–120 (1874); pp 49–56, pls 121–140 (1875); pp 57–65, pls 141–160 (1876)] https://www.biodiversitylibrary.org/item/50391
- Nevill G (1878) Hand list of Mollusca in the Indian Museum, Calcutta. Part I. Gastropoda. Indian Museum, Calcutta, 338 pp. https://doi.org/10.5962/bhl.title.11957
- Pfeiffer L, Clessin S (1881) Nomenclator Heliceorum Viventium: quo continetur nomina omnium hujus familiae generum et specierum hodie cognitarum, disposita ex affinitate naturali. Kassel, Fischer, 617 pp. https://www.biodiversitylibrary.org/item/47266
- Beddome CR (1906) Notes on Indian and Ceylonese species of Glessula. The Journal of Molluscan Studies 6 (3): 160–172. https://doi.org/10.1093/oxfordjournals.mollus.a066160
- Gude GK (1914) Mollusca - II. Trochomorphidae - Janellidae. In: Shipley AE, Marshall GAK (Eds) The Fauna of British India, including Ceylon and Burma. Taylor & Francis, London, 520 pp. https://doi.org/10.5962/bhl.title.12891
- Godwin-Austen HH (1920) Land and freshwater Mollusca of India, including South Arabia, Baluchistan, Afghanistan, Kashmir, Nepal, Burmah, Pegu, Tenasserim, Malay Peninsula, Ceylon, and other islands of the Indian Ocean. Supplementary to Messrs. Theobald and Hanley's Conchologia Indica. London, Taylor & Francis, Volume 3, 1–65. [pls 159–165] https://www.biodiversitylibrary.org/item/57585
- Ramakrishna, Mitra SC, Dey A (2010) Annotated checklist of Indian land molluscs. Occasional paper no. 306. Zoological Survey of India, 359 pp.