Glessula latestriata von Mollendorff 1899
Creators: name: Man, Nem Sian
name: Ablett, Jonathan D.
name: Lwin, Ngwe
name: Sutcharit, Chirasak
name: Panha, Somsak
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Subulinidae
Glessula
Glessula latestriata

description: 13Glessula latestriatavon Möllendorff, 1899
Fig. 8 A – D, Table 1
Glessula latestriata von Möllendorff, 1899: 166. Type locality: Kalow, Shan State [Kalaw Township, Taunggyi District, Shan State, Myanmar]. Beddome 1906: 172. Pilsbry 1909: 100. Gude 1914: 443. Godwin-Austen 1920: 59. Solem 1966: 93, 94, pl. 2, fig. e. Zilch 1973: 110, pl. 5, fig. 26. Inkhavilay et al. 2019: 49, fig. 20 c, d.
Type specimens.
Lectotype SMF 145919 / 1 (Fig. 8 A) designated in Zilch (1973: pl. 5, fig. 26) from Kalow, Shan States. Paralectotypes SMF 227513 / 2 (2 shells) and NHMUK 1926.2. 3.19–20 (2 shells; Fig. 8 B) from Kalow, Shan States.
Other material.
Thale Cumon Temple, Kalaw City, Shan State, Myanmar (20 ° 43 ' 24.1 " N, 96 ° 35 ' 38.9 " E): CUMZ 13070 (3 shells; Fig. 8 C). Ywangan Village, near Lin Way Monastery, Kalaw Township, Taunggyi District, Shan State, Myanmar (21 ° 13 ' 43.3 " N, 96 ° 33 ' 19.2 " E): CUMZ 13071 (1 shell; Fig. 8 D).
Description.
Shell ovate conic, solid, glossy, brownish colour, and with 6 ½ – 7 whorls. Apex blunt; protoconch ~ 2 whorls with smooth to shallow radial grooves; subsequent whorls with distinctly thickened and equally spaced grooves. Spire gradually attenuated, slightly turreted, and bluntly pointed; whorls convex; suture deep; last two whorls almost equal and largest. Aperture narrow and obliquely ovate; peristome white and thickened; columella short, concave, slightly twisted, and truncated. Umbilicus closed.
Distribution.
This species is known from Shan State in Myanmar, northern Thailand, and Laos (Gude 1914; Solem 1966; Inkhavilay et al. 2019).
Remarks.
von Möllendorff (1899) described this species based on specimens collected by B Strubell from Shan State, Myanmar. The original description did not include any illustrations, and only one set of measurements was given. The species description was not explicitly based on one specimen. Nevertheless, Zilch (1973: 110) later used the terms ‘ Holotypus SMF 145919 ’ and ‘ Paratypen SMF 227513 / 2 ’ for the von Möllendorff type series in the SMF collection. This is not a valid holotype designation, but we consider it an inadvertent lectotype designation (ICZN 1999: Arts. 73.1, 74.5, and Recommendation 73 F). The other specimens labelled as ‘ Paratypen SMF 227513 / 2 ’ and ‘ Co-types NHMUK 1926.2. 3.19–20 ’ are considered paralectotypes.
Although both G. latestriata and G. feddeni possess radial grooves striations, the former has a slender shell, gradually attenuated spire, and blunter apex; in contrast, G. feddeni has a larger and broader shell, turreted, intermediately attenuated spire and pointed apex with abruptly truncate columella.
description: 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