Published March 5, 2025 | Version v1

Microcystina undetermined-5

  • 1. Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
  • 2. School of Biological Science, Universiti Sains Malaysia, Penang, Malaysia
  • 3. jk. artandscience, Lauwerbes 8, 2318 AT, Leiden, Netherlands

Description

Microcystina Penang sp. 5

Fig. 9 C

Material examined.

Malaysia • Penang Hill, Air Itam, Forest near Dam, Plot. 26; 5.3977 ° N, 100.2612 ° E; 290 m a. s. l.; 25 Oct. 2022; T. S. Liew, J. Dulipat leg.; BOR/MOL 15464 • 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 15762.

Remarks.

This is a new record for Penang Hill. The shell spire is hardly raised, with a height less than half of the last whorl height. On the upper shell, there are densely spirally arranged pits on the apical and subsequent whorls. This species is unique among the Microcystina species from Penang Hill in having densely spirally arranged pits on the whorls near the periphery. Below the shell, there are densely spirally arranged pits that continue from the upper shell and fade away towards the umbilicus.

Notes

Published as part of 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, pp. 99-154 in ZooKeys 1230 on pages 99-154, DOI: 10.3897/zookeys.1230.136906

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Linked records

Additional details

Biodiversity

Collection code
T
Material sample ID
BOR/MOL 15464 , BOR/MOL 15762
Event date
2022-10-25 , 2023-02-04
Verbatim event date
2022-10-25 , 2023-02-04
Kingdom
Animalia
Phylum
Mollusca
Order
Stylommatophora
Family
Ariophantidae
Genus
Microcystina
Species
undetermined-5
Taxon rank
species