Microcystina Penang sp. 2

Goh, Soo-Mun, Jasrul, Dulipat, Lee, Mei-Yi, Vermeulen, Jaap J. & Liew, Thor-Seng, 2025, From 153 - year-old records to contemporary discoveries: land snail (Mollusca, Gastropoda) diversity in Penang Hill, Malaysia, ZooKeys 1230, pp. 99-154 : 99-154

publication ID

https://doi.org/10.3897/zookeys.1230.136906

publication LSID

lsid:zoobank.org:pub:0FBF41B0-1D35-4A31-9653-B1F475FBDF80

DOI

https://doi.org/10.5281/zenodo.14977468

persistent identifier

https://treatment.plazi.org/id/F7B4952B-3B25-5B0A-BCE9-1EC73901F42C

treatment provided by

ZooKeys by Pensoft (2025-03-05 18:13:24, last updated 2025-03-07 00:01:36)

scientific name

Microcystina Penang sp. 2
status

 

Microcystina Penang sp. 2

Fig. 9 A View Figure 9

Material examined.

Malaysia • Penang Hill, The Habitat, Research trail, Plot. 01 ; 5.4248 ° N, 100.2669 ° E; 720 m a. s. l.; 5 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh leg.; BOR/MOL 15456 GoogleMaps Penang Hill, The Habitat, Habitat nature trail, Plot. 07 ; 5.4210 ° N, 100.2642 ° E; 760 m a. s. l.; 6 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh, M. Y. Lee leg.; BOR/MOL 15458 GoogleMaps Penang Hill, Air Itam, Forest near Dam, Plot. 25 ; 5.3900 ° N, 100.2575 ° E; 290 m a. s. l.; 25 Oct. 2022; T. S. Liew, J. Dulipat leg.; BOR/MOL 15459 GoogleMaps Penang Hill, Trail - Moniot Road East, Plot. 28 ; 5.4240 ° N, 100.2746 ° E; 530 m a. s. l.; 26 Oct. 2022; T. S. Liew, J. Dulipat leg.; BOR/MOL 15457 GoogleMaps Penang Hill, By Path H, Plot. 33 ; 5.4210 ° N, 100.2701 ° E; 610 m a. s. l.; 4 Feb. 2023; T. S. Liew, A. Yusni leg.; BOR/MOL 15763 GoogleMaps .

Remarks.

This is a new record for Penang Hill. The shell spire is highly raised, with a height more than half of the last whorl height. This species has the most convex shell compared to other Microcystina species from Penang Hill. On the upper shell, the apical whorls have elevated spiral ribs that continue onto subsequent whorls, which are crossed by radial ribs forming granule-like sculptures. Below the shell, there are spaced grooves with spiral lines at the periphery, which reduce towards the umbilicus.

Gallery Image

Figure 9. A Microcystina Penang sp. 2 BOR / MOL 15458 B Microcystina Penang sp. 4 BOR / MOL 15755 C Microcystina Penang sp. 5 BOR / MOL 15762 D Microcystina Penang sp. 6 BOR / MOL 15756. Scale bar: 0.5 mm.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

SubClass

Heterobranchia

Order

Stylommatophora

SuperFamily

Helicarionoidea

Family

Ariophantidae

Genus

Microcystina