Plectostoma wallacei wallacei Ancey, 1887

Marzuki, Mohammad Effendi bin, Liew, Thor-Seng & Mohd-Azlan, Jayasilan, 2021, Land snails and slugs of Bau limestone hills, Sarawak (Malaysia, Borneo), with the descriptions of 13 new species, ZooKeys 1035, pp. 1-113 : 1

Plectostoma wallacei wallacei Ancey, 1887 Figures 12F , 48B

Plectostoma wallacei Ancey, 1887: 276-277.

Type locality.

“Borneo”.

Material examined.

Gunung Doya: ME 0239, ME 9697. Gunung Kapor: ME 0218, ME 0240, ME 0242, ME 0243, ME 0244, ME 2915, ME 8066, ME 8482, ME 8759, ME 8767, ME 8780. Lobang Angin: ME 0246, ME 8730, ME 8733, ME 8743. Gunung Batu: ME 0245, ME 0247. Gunung Stulang: ME 5898. Kampung Padang Pan: ME 6669.

Distribution in Borneo.

Sarawak: Kuching and Serian divisions. Endemic to Borneo.

Remarks.

Living snails were observed foraging on the wet vertical limestone rock surfaces covered with mosses and lichens.

Figures

Figure 12. A Plectostoma austeni (E. A. Smith, 1894) ME 8734 Lobang Angin B Plectostoma everetti (E. A. Smith, 1893) ME 8793 Gunung Batu C Plectostoma margaretchanae, sp. nov., MZU. MOL. 20.06 paratype Gunung Batu D Plectostoma wallacei busauense (E. A. Smith, 1893) ME 9495 Gunung Doya E Plectostoma wallacei teinostoma (Vermeulen, 1994) ME 8899 Gunung Doya F Plectostoma wallacei wallacei Ancey, 1887 ME 5898 Gunung Stulang.

Figure 48. Living snails from Bau A Chamalycaeus specus (Godwin-Austen, 1889) ME 11867 Lobang Angin B Plectostoma wallacei wallacei Ancey, 1887 ME 8767 Gunung Kapor C Plectostoma austeni (E. A. Smith, 1894) ME 8794 Gunung Batu D Plectostoma everetti (E. A. Smith, 1893) ME 8793 Gunung Batu. All not to scale.