Amphidromus angulatus Fulton, 1896

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

Amphidromus angulatus Fulton, 1896 Figure 31E

Amphidromus angulatus Fulton, 1896: 84-85, pl. 6, fig. 3.

Type locality.

“Sarawak”.

Material examined.

Gunung Doya: ME 8919, ME 9176, ME 9191. Gunung Kapor: ME 4611, ME 4632, ME 8075, ME 8789, ME 9045, ME 9223. Lobang Angin: ME 4631. Gunung Batu: ME 4612, ME 4630.

Distribution in Borneo.

Sarawak: Kuching and Miri divisions. Endemic to Borneo.

Remarks.

Only dry shells were found during the surveys. This species is similar to Amphidromus thalassochromus Vermeulen & Junau, 2007 and Amphidromus coeruleus Clench & Archer, 1932 in terms of shell shape and colour pattern on the shell surface. However, it differs from A. thalassochromus by having a rounded last whorl at the periphery and it differs from A. coeruleus in having a somewhat obese shell with a short spire.

Figures

Figure 31. A Bradybaena similaris (Ferussac, 1821) ME 4906 Gunung Batu B Chloritis tomentosa (L. Pfeiffer, 1854) ME 8917 Gunung Doya C Landouria winteriana (L. Pfeiffer, 1842) ME 8078 Gunung Kapor D Ganesella acris (Benson, 1859) ME 8963 Gunung Kapor E Amphidromus angulatus Fulton, 1896 ME 4632 Gunung Kapor F Amphidromus cf. similis Pilsbry, 1900 ME 8756 Gunung Kapor.