Hypselostoma depressispira 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 depressispira

description: Hypselostoma depressispira (van Benthem Jutting, 1949) comb. nov.
Figs 242 C, 252, 259
Gyliotrachela depressispira van Benthem Jutting, 1949 b: 60, pl. 3.
Gyliotrachela depressispira — van Benthem Jutting 1950: 27, 45, fig. 15; Berry 1963: 361; Maassen 2001: 75.
Type material examined.
Malaysia • 12 paratypes; Pahang, Bukit Chintamani; ex. coll. Raffles Museum, Singapore; RMNH.Moll.137152.
Additional material examined.
Malaysia • 2 shells; Pahang, 25 km northwest from Kuantan, north of Kampung Panching, Gua Charas, rock temple; 03°54.692'N, 103°08.839'E; 140 m a. s. l.; 24 Jan. 2013; A. Hunyadi leg.; coll. HA • 28 shells; Kelantan, Gua Musang, vicinity of cave entrance; 04°52.974'N, 101°58.116'E; 135 m a. s. l.; 17 Jan. 2013; A. Hunyadi leg.; coll. HA • 37 shells; Kelantan, Gua Musang, 6 km towards Pulai, Gua Madu, vicinity of cave, 04°50.213'N, 101°56.982'E; 120 m a. s. l.; 17 Jan. 2013; A. Hunyadi leg.; coll. HA • 25 shells; Pahang, Gua Bama, Kuala Lipis 9 km, Padang Tungku; 04°11.652'N, 101°57.936'E; 120 m a. s. l.; 19 Jan. 2013; A. Hunyadi leg.; coll. HA • 201 shells; Pahang, Bukit Cinta Manis, south-southeastern side, Lebuhraya Karak 800 m towards Kampung Cinta Manis; 03°26.714'N, 102°00.814'E; 22 Jan. 2013; A. Hunyadi leg.; coll. HA • 3 shells; Pahang, Kota Gelanggi, Jengka-Jerantut road, on limestone surfaces covered with mosses; 03°53′28.55″N, 102°28′23.28″E; 29. May 2011; M. E. Marzuki leg.; coll. PGB • 4 shells; Pahang, Gua Bama at Kp. Relong (~ 14 km N of Kuala Lipis); Oct. 1998; Hemmen leg; coll. PGB • 6 shells; Pahang, Gua Bama (~ 12 / 13 km N of Kuala Lipis); 04°11.643'N, 101°57.925'E; Nov. 2000; Hemmen leg; coll. PGB.
Type locality.
“ Bukit Chintamani, Pahang ”, Malaysia.
Differential diagnosis.
This species bears some resemblance to the more depressed form of H. fortunatum sp. nov. However, H. depressispira has much more apertural barriers as well as separated angular and parietal lamellae. The last whorl is also more prominently keeled in H. depressispira and the umbilicus is slightly wider. See also under H. tubiferum.
Distribution.
This species is known from Peninsular Malaysia.
Remarks.
While examining the types, variability was observed in the smaller barriers. In some specimens, there were two and in others three interpalatal plicae. The number of lamellae between the columellar and parietal ranged between three and four. Number of barriers between lower palatal plica and columellar lamella ranged from two to three. Some specimens from Gua Musang (Kelantan) had only one barrier between the lower palatal and columellar and only one dot-like barrier between the columellar and parietal. Otherwise, the apertural barrier variability of other samples examined by us matches that of the type series.
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