Hypselostoma cultura ( Tanmuangpak & Dumrongrojwattana, 2022 ), 2025

Hypselostoma cultura ( Tanmuangpak & Dumrongrojwattana, 2022) comb. nov.

Figs 111 M View Figure 111 , 127 View Figure 127 , 154 View Figure 154

Gyliotrachela cultura Tanmuangpak & Dumrongrojwattana, 2022: 408–415, fig. 2. View in CoL View Cited Treatment

Material examined.

Thailand • 52 shells; Chonburi Province, Ko Sichang, Tha Thewawong, vicinity of Mondop Roi Phraphutthabat ; 13°10.256'N, 100°48.305'E; 140 m a. s. l.; 11 Mar. 2023; A. Hunyadi leg.; coll. HA GoogleMaps • 3 shells; Chonburi Province, Si Racha, Ko Si Chang ; 25 Oct. 2019; J. U. Otani leg.; coll. PGB • 2 shells; Lampang Province, Maemoh district, Wat Tam Innaeramitr ; 10 Aug. 2014; J. U. Otani leg.; coll. PGB .

Type locality.

“ Agricultural areas in Mueang Loei District, Loei Province, Thailand (17°34′43.020″N, 101°51′04.020″E) ”.

Differential diagnosis.

See under H. khaowongense .

Distribution.

This species is, apart from the type locality in Loei province, known from two more localities: one in Lampang and one in Chonburi province.

Remarks.

This species might be conspecific with H. khaowongense . The differences mentioned by Tanmuangpak and Dumrongrojwattana (2022) between this species and H. khaowongense (therein under Gyliotrachela saraburiensis ) are only regarding the number of apertural barriers, which are very variable in H. khaowongense . We have noticed additionally that the shells of H. cultura are strongly shouldered when observed laterally (e. g., as in Tanmuangpak and Dumrongrojwattana 2022: Fig. 2 E, K View Figure 2 ) which is not typical for H. khaowongense . Due to the absence of relevant comparative material, we do not formally synonymise the two species. Specimens examined by us from Chonburi (Fig. 127 View Figure 127 ) and Lampang provinces show very similar shell morphology as figured in Tanmuangpak and Dumrongrojwattana (2022), just with a wider umbilicus. We do not intend to describe this species as separate from H. cultura until more comparative material becomes available.