Geotrochus labuanensis (Pfeiffer, 1863)
“The shining surface and narrow red band just above and below the periphery identify this species. The similarity colored Videna have a widely open umbilicus and wider, fewer whorls; whorls 6 ¾, 7 +.” (Solem, 1964)
Pfeiffer (1863) original descriptions on Helix labuanensis – “Testa imperforata, conoideo-depressa, tenuis, carinata, striatula et liris minutis elevatis prope suturam distinctioribus cincta, cornea; spira concaviusculo-conoidea, apice acutiuscula; sutura marginata; anfr. 7, subplani, lente accrescentes, ultimus non descendens, acuttissime carinatus, basi paruni convexus; apertura obligua, depresse securiformis; peristoma simplex, rectum, margine supero brevi, antrorsum arcuato, basali a carina recedente, leviter arcuato, ad insertionem subcalloso.”
“The two adults measured, respectively, diameter 16.2, 16.6 mm; height 6.9, 7.1 mm.” (Solem, 1964)
Shell height – 5 mm; Shell width – 15-16.5 mm.
Type locality – “In insula Labuan” leg. H. Low (Pfeiffer, 1863)
Other localities – “Sabah; Bukit Bilit” (Solem, 1964); “Sabah; Dewhurst Bay” (Solem, 1964)