Diplommatina rubicunda (Von Martens, 1864)
“D. electa has more prominent ribs, more or less flat sides of the spire, and all whorls are about equally convex.” (Vermeulen, 1993)
Kobelt (1902) descriptions on Gastroptychia rubicunda – “Schale linksgewunden, ungenabelt, ei-kegelförmig, fein schräg gestreift, seidenglänzend, rotorangefarben, Apex heller rot; Gewinde kegelförmig, spitz; Naht massig tief; 8 sehr wenig gewölbte, regelmässig zunehmende Windungen, letzte etwas schmaler als die vorletzte, abgerundet, vorn sehr ansteigend; Mündung wenig schräg, abgerundet viereckig, gleichfarbig; Mundrand doppelt, heide ringsum zurückgeschlagen, innerer vorgezogen, durch einen angedrückten Callus verbunden; Spindeband aussen buchtig ausgeschnitten, mit deutlicher, wagerecht eindringender Falte.”
Vermeulen (1993) descriptions on Diplommatina rubicunda – “Shell sinistral, fusiform to almost conical, with the last whorl slightly moved inwards last two whorls widest; sides slightly convex. Whorls 6 7/8-7 7/8, top whorls convex next whorls almost flat, body whorls slightly convex. Suture slightly impressed. Constriction level with the parietal side of the peristome, with 1 parietalis, 1-2 longitudinal palatales, the upper parallel to the suture, 1 transversal palatalis, 1 columellaris. Tuba 7/8 whorl. Radial ribs not sinuous, inconspicuous, low, wide, densely placed (5-9 ribs/0.5 mm on the penultimate whorl). Spiral striation absent. Umbilicus closed. Aperture hardly 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, rather sharp; outer peristome expanding beyond the inner; inner peristome without palatal lip, free and erect on the columellar side, somewhat expanding on the parietal side.”
Gastroptychia rubicunda – “H. 7.5, Durchm. 4 mm.” (Kobelt, 1902); Diplommatina rubicunda – “Height 6.2-8.0 mm; width 3.0-3.5 mm; index 1.9-2.3. Height aperture 1.3-1.9 mm; width 1.2-1.8 mm.” (Vermeulen, 1993)
Other localities – “Borneo. Sarawak. 1st Div.: Kpg. Tiang Bekap 10 km SSW of Kpg. Beratok” leg. De Vogel (Vermeulen, 1993); “Borneo. Sarawak. 1st Div.: 7.5 km WNW of Kpg. Piching, near Serian” (Vermeulen, 1993); “Borneo. Sarawak. 4th Div.: Bt. Sarang, Tatau Valley” leg. Bong (Vermeulen, 1993); “Borneo. Sabah. Sandakan Zone, Batu Putuih near road Lahad Datu-Sandakan, near Kinabatangan R.” (Vermeulen, 1993); “Borneo. Sabah. Tawau Zone: NW of road Lahad Datu-Sandakan crossing with Segama R.” (Vermeulen, 1993); “Borneo. Sabah. Tawau Zone: ‘Kirk’s Cave’, 8 km N. of Lahad Datu.” (Vermeulen, 1993); “Borneo. Sabah. Tawau Zone: Danum Valley Forest Reserve, area near Research Station.” (Vermeulen, 1993); “Borneo. Sabah. Tawau Zone: Bt. Pababola, Sengarong Hills 25 km ESE of Kunak.” (Vermeulen, 1993)
Batu Putih, Sandakan, Sabah, Malaysia.