Allopeas Baker, 1935
publication ID |
https://doi.org/ 10.3897/zookeys.1208.116083 |
publication LSID |
lsid:zoobank.org:pub:0215503D-E8B4-4179-89F6-FB2CCC59F37E |
DOI |
https://doi.org/10.5281/zenodo.13138353 |
persistent identifier |
https://treatment.plazi.org/id/CA0B623A-CC7D-5A4D-A7AC-AEB89408DC97 |
treatment provided by |
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scientific name |
Allopeas Baker, 1935 |
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Genus Allopeas Baker, 1935
Lamellaxis (Allopeas) Baker, 1935: 84. Zilch 1959: 349.
Allopeas View in CoL — 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 View 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).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Allopeas Baker, 1935
Man, Nem Sian, Ablett, Jonathan D., Lwin, Ngwe, Sutcharit, Chirasak & Panha, Somsak 2024 |
Allopeas
Schileyko AA 1999: 509 |
Lamellaxis (Allopeas)
Zilch A 1959: 349 |
Baker HB 1935: 84 |