Diplommatina serempakensis Vermeulen, 1993
“Both D. miraculumdei and D. tiara have only a single parietalies, and a single palatalis; both also lack a palatal lip, and have tubular, not trough-shaped projections on the radial ribs. (Vermeulen, 1993)
Vermeulen (1993) original descriptions on Diplommatina serampakensis – “Shell dextral, conical, sides flat. Whorls 7 1/8-8 1/8, convex or slightly angular. Suture impressed. Constriction level with the angular edge or the parietal side of the peristome, with 2 parietales, 2 longitudinal palatalis, 1 transversal palatalis, 1 columellaris. Tuba 7/8-1 whorl. Radial ribs near the top low, rather densely placed, elsewhere widely spaced, usually absent around the constriction, rather distinct, halfway the whorl with a straight, trough-shaped projection which is longitudinally striated on all sides, in adults, sometimes abraded to a semi-circular scar. Spiral striation over the entire shell, sinuous, distorted. Umbilicus closed. Aperture hardly tilted with regard to the coiling axis; columellaris rather inconspicuous, not directed downwards. Peristome double, expanding; palatal side not or hardly sinuous, without edge; basal side without edge; basal edge not sinuous, rounded; outer peristome not or hardly expanding beyond the inner; inner peristome with a palatal lip, free and erect on the columellar side, somewhat expanding on the parietal side.”
Diplommatina serampakensis – “Height 4.0-4.9 mm; width 1.7-2.1 mm; index 2.3-2.5. Height and width aperture 0.8-1.” (Vermeulen, 1993)
Type locality – “Borneo. Kalimantan Selatan; Jaro, near Muara Uja, limestone escarpment W. of the village” (Vermeulen, 1993)
Other localities – “Borneo. Kalimantan Selatan; G. Halat, near borber Kalimantan Timur along main road Banjarmasin-Balikpapan.” (Vermeulen, 1993); “Borneo. Kalimantan Selatan; G. Buleh, 4 km E of Muara Uja” (Vermeulen, 1993)