Diplommatina cyrtorhitis Vermeulen, 1993
Vermeulen (1993) original descriptions on Diplommatina cyrtorhitis – “Shell dextral, about conical, last (two) whorls widest; sides concave. Whorls 6 3/8-7 3/8, convex. Suture impressed. Constriction about level with the edge between the parietal and columellar side of the peristome, with 1 parietalis, 1 transversal palatalis, 1 columellaris. Tuba ¾ whorl. Radial ribs strongly sinuous, with a wide, well-rounded are to the right, rather distinct, rather high, rather wide, rather densely placed (4-5 ribs/0.5 mm on the penultimate whorl). Spiral striation present, usually inconspicuous. Umbilicus closed. Aperture hardly tilted with regard to the coiling axis; columellaris rather inconspicuous. Peristome double, expanding; palatal side not to slightly sinuous, with a sslight edge; basal side with or without edge; basal edge hardly sinuous protruding; outer peristome expanding beyond the inner; inner peristome with or without palatal lip, expanding beyond the inner; inner peristome with or without palatal lip, expanding over the shell on the columellar side, little expanding on the parietal side.”
Diplommatina cyrtorhitis – “Height 2.3-2.7 mm; width 1.1-1.3 mm; index 1.9-2.3. Height and width aperture 0.5-0.6.” (Vermeulen, 1993)
Type locality – “Borneo. Sabah. Interior Zone: Batu Urun near Sepulot, from soil deposited at Tenom Agricultural Station” (Vermeulen, 1993)