Diplommatina subglaber subisensis (Vermeulen, 1993)
“The above mentioned sample of G. Braang is an important extension of the range of this taxon, which was regarded as endemic to the Subis area. The specimens from G. Braang are slightly larger (up to 6 mm high and 3 mm wide), thus partly obliterating the difference in size between this and D. s. subglaber. It is possible that new samples will show that the two constitute in fact a single, variable taxon; for the time being, it seems best to keep them separate at subspecific level.” (Vermeulen, 1996)
Vermeulen (1993) original descriptions on Diplommatina subisensis – “Shell sinistral, fusiform, last two whorls widest; sides flat or slightly concave. Whorls 6½-7 1/8, top whorls convex, next whorls flat, body whorls slightly convex. Suture slightly impressed. Constriction level with the parietal side of the peristome, with 1 parietalis, sometimes 1 slightly oblique longitudinal palatalis, 1 transversal palatalis, 1 columellaris. Tuba ¾-7/8 whorl. Radial ribs absent or inconspicuous, not sinuous, low, wide, densely placed (7-9 ribs/0.5 mm on the penultimate whorl). Spiral striation absent. Umbilicus closed. Aperture slightly tilted with regard to the coiling axis; columellaris distinct, directed downwards. Peristome double, expanding; palatal side not sinuous, without edge; basal side without edge; basal edge not sinuous, somewhat angular; outer peristome expanding beyond the inner; inner peristome without palatal lip, free and erect on the columellar side, somewhat expanding on the parietal side.”
Diplommatina subisensis – “Height 4.5-5.3 mm; width 2.4-2.7 mm; index 1.8-2.1. Height aperture 1.0-1.2 mm; width 1.1-1.3.” (Vermeulen, 1993)
Type locality – “Borneo. Sarawak. 4th Div.: G. Subis (Batu Niah)” (Vermeulen, 1993)
Other locality – “Borneo. Sarawak. 1st Div.: G. Braang, NW. foot, 22 miles S. of Kuching” leg. Wilford (Vermeulen, 1996)