Hypselostoma kelantanense Gojšina & Hunyadi & Sutcharit & Tongkerd & Auffenberg & Grego & Vermeulen & Reischütz & Páll-Gergely 2025, comb. nov.
Creators: name: Gojšina, Vukašin
name: Hunyadi, András
name: Sutcharit, Chirasak
name: Tongkerd, Piyoros
name: Auffenberg, Kurt
name: Grego, Jozef
name: Vermeulen, Jaap J.
name: Reischütz, Alexander
name: Páll-Gergely, Barna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Hypselostomatidae
Hypselostoma
Hypselostoma kelantanense

description: Hypselostoma kelantanense (Sykes, 1902) comb. nov.
Figs 224 D, 228, 229, 230, 241
Boysidia kelantanense Sykes, 1902: 61, pl. 3, fig. 7.
Boysidia kelantanensis — Möllendorff 1902: 139; Pilsbry 1917: 208, pl. 35, figs 10–12.
Paraboysidia kelantanensis — Laidlaw 1933: 213–214.
Paraboysidia kelantanensis kelantanensis — van Benthem Jutting 1950: 12–13, 39, fig. 4; Maassen 2001: 74.
Paraboysidia kelantanensis rafflesi van Benthem Jutting, 1950: 13–14, 39, fig. 5. syn. nov.
Paraboysidia kelantanensis tenuidentata van Benthem Jutting, 1950: 15–17, 39, fig. 6. syn. nov.
Paraboysidia kelantanensis rafflesi — Maassen 2001: 74.
Paraboysidia kelantanensis tenuidentata — Maassen 2001: 74.
Type material examined.
Malaysia • 1 syntype of Paraboysidia kelantanensis kelantanensis; NHMUK 1930.9. 12.13–15 • syntypes of Paraboysidia kelantanensis kelantanensis; Kelantan; UF 00113222 • 4 paratypes of Paraboysidia kelantanensis rafflesi; from the type locality; 1947; Raffles Museum, Singapore ex. coll.; RMNH.Moll.137125 • 1 paratype of Paraboysidia kelantanensis tenuidentata; from the type locality; Mar. 1939; Raffles Museum, Singapore ex. coll.; RMNH.Moll.137127. Syntypes of Paraboysidia kelantanensis kelantanensis; ANSP 98191.
Type localities.
“ Kelantan ”, Malaysia (H. kelantanensis kelantanensis); “ Kota Tongkat, Pahang ”, Malaysia (H. kelantanensis rafflesi); “ Kramat Pulai, Perak ”, Malaysia (H. kelantanensis tenuidentata).
Differential diagnosis.
This species is in terms of apertural dentition and surface sculpture similar to H. frequens. However, it has a more rounded shell with more bulging whorls and narrower umbilicus than previous species. See also under H. serpa.
Distribution.
This species is known from Kelantan, Pahang, and Perak provinces in Peninsular Malaysia.
Remarks.
We observed no crucial differences between the two subspecies described by van Benthem Jutting (1950) and the nominotypical subspecies. Furthermore, one paratype of P. kelantanensis rafflesi had the identical shell morphology as that of P. kelantanensis tenuidentata which indicates that the differences mentioned by van Benthem Jutting (1950) (strength of the apertural barriers and overall shell shape) can be considered as a part of intraspecific variability. Some of the examined type specimens are more slender than others. Additionally, some of them had a small lamella between parietal and columellar, while some of them did not.
description: Published as part of Gojšina, Vukašin, Hunyadi, András, Sutcharit, Chirasak, Tongkerd, Piyoros, Auffenberg, Kurt, Grego, Jozef, Vermeulen, Jaap J., Reischütz, Alexander & Páll-Gergely, Barna, 2025, A new start? Revision of the genera Anauchen, Bensonella, Gyliotrachela and Hypselostoma (Gastropoda, Eupulmonata, Hypselostomatidae) of Southeast Asia with description of 46 new species, pp. 1-338 in ZooKeys 1235 on pages 1-338, DOI: 10.3897/zookeys.1235.145281