Plectostoma everetti (E. A. Smith, 1893)

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 everetti (E. A. Smith, 1893) Figures 12B , 48D

Opisthostoma everetti E. A. Smith, 1893: 346-347, pl. 25, figs 12, 12A.

Type locality.

"Jambusan, N.W. Borneo" [= Jambusan Hills, Bau, Sarawak].

Material examined.

Gunung Doya: ME 8900, ME 9012, ME 9158. Gunung Batu: ME 0219, ME 0222, ME 2834, ME 8793.

Distribution in Borneo.

Sarawak: Kuching Division. Endemic to Borneo.

Remarks.

Living snails were observed foraging on the moderately 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.