Published July 30, 2024
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Taxonomic treatment
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Allopeas Baker 1935
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
Genus
AllopeasBaker, 1935Lamellaxis (Allopeas) Baker, 1935: 84. Zilch 1959: 349.
Allopeas — Schileyko 1999: 509.
Type species.
Bulimus gracilis Hutton, 1834, by original designation.
Diagnosis.
Shell slender and conical; spire high and gradually attenuated; embryonic whorls pointed and smooth; subsequent whorls with striations. Aperture vertical, broad, and oblong; columella straight, and columellar margin expanded near umbilicus. Penis long, fusiform shape at base then narrowing towards epiphallus, and flagellum absent; vagina cylindrical and narrow tube, and ~ 1 / 2 of penis length.
Remarks.
The genus is sometimes confused with Paropeas Pilsbry, 1906 and Opeas Albers, 1850. Allopeas can be distinguished from Paropeas by its less turreted shell, finner striations, smooth embryonic whorls, straight columella, and columellar margin expanded (Table 2). Paropeas possesses a mostly turreted shell, stronger irregular striations throughout and entire whorls, concave columella, and columellar margin less expanded. Additionally, Allopeas can be differentiated from Opeas by having larger and broader shell, attenuated spire, and stronger striations (Schileyko 1999). By contrast, Opeas has a smaller and narrower shell, cylindrical or less attenuated spire, and finer striations (Pilsbry 1906).
The genus Allopeas consists of ~ 25 species distributed across tropical regions of Asia, Europe, Africa, and America (Schileyko 1999; MolluscaBase 2023). In Southeast Asia, Vietnam has recorded four species (Schileyko 2011), while Cambodia, Laos, Myanmar, and Thailand have reported only one species, namely Allopeas gracile (Gude 1914; Inkhavilay et al. 2019; Sutcharit et al. 2020 b).
Notes
Published as part of Man, Nem Sian, Ablett, Jonathan D., Lwin, Ngwe, Sutcharit, Chirasak & Panha, Somsak, 2024, Contributions on a small collection of the former Subulinidae Fischer & Crosse, 1877 (Eupulmonata, Achatinoidea) with catalogue of the Glessula and Rishetia species recorded from Myanmar, pp. 173-239 in ZooKeys 1208 on pages 173-239, DOI: 10.3897/zookeys.1208.116083
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Baker
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Stylommatophora
- Family
- Subulinidae
- Genus
- Allopeas
- Taxon rank
- genus
- Taxonomic concept label
- Allopeas Baker, 1935 sec. Man, Ablett, Lwin, Sutcharit & Panha, 2024
References
- Baker HB (1935) Jamaican land snails, 3. The Nautilus 48 (3): 83 - 88. https: // doi. org / 10.5962 / bhl. part. 11532
- Zilch A (1959) Gastropoda, Euthyneura. In: Schindewolf OH (Ed.) Handbuch der Paläozoologie, Band 6, Gastropoda. Gebrüder Borntraeger, Berlin, 201–400.
- Schileyko AA (1999) Treatise on recent terrestrial pulmonate molluscs Part 4. Draparnaudiidae, Caryodidae, Macrocyclidae, Acavidae, Clavatoridae, Dorcasiidae, Sculptariidae, Corillidae, Plectopylidae, Megalobulimidae, Strophocheilidae, Cerionidae, Achatinidae, Subulinidae, Glessulidae, Micractaeonidae, Ferrussaciidae. Ruthenica (Supplement 2): 437–564.
- Hutton T (1834) On the land shells of India. Journal of the Asiatic Society of Bengal 3 (26): 81 - 93.
- Pilsbry HA (1906) [1906 - 1907] Manual of Conchology, Structural and Systematic, with Illustrations of the Species, Series 2, Pulmonata. Volume 18: Achatinidae: Stenogyrinae and Coeliaxinae. Conchological Section, Academy of Natural Sciences of Philadelphia, Philadelphia, 1 - 357. [pls 1 - 51] [pp 1 - 272, pls 1 - 34 (1906); pp 273 - 357, pls 35 - 51 (1907)] https: // doi. org / 10.1175 / 1520 - 0493 (1907) 35 % 3 C 357 a: LP % 3 E 2.0. CO; 2
- Albers JC (1850) Die Heliceen nach naturlicher Verwandtschaft systematisch geordnet. Enslin, Berlin, 262 pp. https: // doi. org / 10.5962 / bhl. title. 11507
- Pilsbry HA (1906) [1906–1907] Manual of Conchology, Structural and Systematic, with Illustrations of the Species, Series 2, Pulmonata. Volume 18: Achatinidae: Stenogyrinae and Coeliaxinae. Conchological Section, Academy of Natural Sciences of Philadelphia, Philadelphia, 1–357. [pls 1–51] [pp 1–272, pls 1–34 (1906); pp 273–357, pls 35–51 (1907)] https://doi.org/10.1175/1520-0493 (1907) 35 % 3 C 357 a: LP % 3 E 2.0. CO; 2
- 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
- Naggs F (1994) The reproductive anatomy of Paropeas achatinaceum and a new concept of Paropeas (Pulmonata: Achatinoidea: Subulinidae). The Journal of Molluscan Studies 60 (2): 175–191. https://doi.org/10.1093/mollus/60.2.175
- Budha PB, Naggs F, Backeljau T (2017) Conchological differentiation and genital anatomy of Nepalese Glessulinae (Gastropoda, Stylommatophora, Subulinidae), with descriptions of six new species. ZooKeys 675: 129–156. https://doi.org/10.3897/zookeys.675.13252
- Chaper M (1885) Description de quelques especes et genres nouveaux de coquilles vivantes de diverses provenances. Bulletin de la Societe Zoologique de France 10: 42 - 54. https: // doi. org / 10.5962 / bhl. part. 14302
- Benson WH (1836) Descriptive catalogue of terrestrial and fluviatile Testacea, chiefly from the North-East frontier of Bengal. Journal of the Asiatic Society of Bengal 5 (54): 350 - 358. https: // biodiversitylibrary. org / page / 37188459
- Miller JS (1822) A list of the freshwater and landshells occurring in the environment of Bristol, with observations. Annals of Philosophy, New Series 3 (5): 376 - 381. https: // www. biodiversitylibrary. org / page / 2498134
- Mousson A (1857) Novitates Zollingerianae (1). Journal de Conchyliologie 6 (2): 154 - 164.
- Benson WH (1842) Mollusca. In: T. Cantor, General features of Chusan, with remarks on the flora and fauna of that island. Annals and Magazine of Natural History, Series 1 9 (60): 486 - 490. https: // www. biodiversitylibrary. org / page / 18684698
- Ehrenberg CG (1831) Animalia evertebrata. Symbolae physicae seu icones et descriptiones naturalium novorum aut minus cognitorum quae ex itineribus Lybiam Aegyptum Nubiam Dongalam Syriam Arabiam et Habessinian. Pars Zoologica. Abhandlungen der deutschen Akademie der Wissenschaften. 4: (unpaginated). https: // www. biodiversitylibrary. org / page / 48517192
- MolluscaBase eds (2023) MolluscaBase. https://www.molluscabase.org [in 2023–07 – 17] https://doi.org/10.14284/448
- Schileyko AA (2011) Checklist of land pulmonate molluscs of Vietnam (Gastropoda: Stylommatophora). Ruthenica 21 (1): 1–68.
- Inkhavilay K, Sutcharit C, Bantaowong U, Chanabun R, Siriwut W, Srisonchai R, Pholyotha A, Jirapatrasilp P, Panha S (2019) Annotated checklist of the terrestrial molluscs from Laos (Mollusca, Gastropoda). ZooKeys 834: 1–166. https://doi.org/10.3897/zookeys.834.28800
- Sutcharit C, Thach P, Chhuoy S, Ngor PB, Jeratthitikul E, Siriwut W, Panha S (2020 b) Annotated checklist of the land snail fauna from southern Cambodia (Mollusca, Gastropoda). ZooKeys 948: 1–46. https://doi.org/10.3897/zookeys.948.51671