Diplommatina strongyla Vermeulen, 1993  

Vermeulen (1993) original descriptions on Diplommatina strongyla – “Shell dexral, fusiform, penultimate whorl widest; sides flat. Whorls 5 1/8-6 3/8, convex. Suture impressed. Constriction level with the angular edge of the peristome or slightly beyond this point, sometimes level with the parietal side of the peristome, with 1 parietalis, 1 longitudinal palatalis at the level of the peristome, 1 transversal palatalis, 1 columellaris. Tuba 1 whorl. Radial ribs straight (or slightly sinuous on the lowermost whorl), rather distinct, rather low, rather thin, densely placed (7-10 ribs/0.5 mm on the penultimate whorl). Spiral striation absent or inconspicuous. Umbilicus closed. Aperture hardly tilted with regard to the coiling axis; columellaris rather distinct, directed downwards Peristome double, moderately expanding; palatal side sinuous, without edge; basal side without edge; basal edge sinuous, rather sharp; outer peristome hardly expanding beyond the inner; inner peristome with a palatal lip, expanding over the shell on the columellar side, little expanding on the parietal side.”