Diplommatina plecta Fulton, 1901
“Somewhat similar in form to D. baritensis, Smith, but with larger penultimate whorl, less numerous and much less distinct oblique costae; and it is further distinguished by the transverse fold.” (Fulton, 1901)
Fulton (1901) original descriptions on Diplommatina plecta – “Shell dextral, imperforate, subfusiform, pale red-brown, subpellucid; whorls 7, convex, ornamented with somewhat inconspicuous oblique costae, penultimate a trifle larger than the last whorl; aperture subcircular; peristome moderately thickened, inner margin raised; columella thin, oblique, directed outwards; columella plait somewhat prominent; an interior transverse fold is seen from front of last whorl, situated a little below and parallel with the suture.”
Kobelt (1902) descriptions on Diplommatina (Sinica) plecta – “Schale rechtsgewunden, undurchbohrt, fast spindelförmig, durchscheinend, blass rotbraun; 7 gewölbte, ziemlich undeutlich schräg gerippte Wiudungen, die vorletzte etwas breiter als die letzte; Mündung fast kreisrund; Mundrand massig verdickt, doppelt, der innere erhoben; Spindelrand dünn, schief, nach aussen gerichtet; Spindelfalte etwas vorspringend; eine von vorn sichtbare Falte etwas unter der Naht und ihr gleichlaufend.”
Vermeulen (1993) descriptions on Diplommatina plecta – “Shell dextral, fusiform, penultimate whorl widest; sides flat or slightly concave. Whorls 6 5/8-6 7/8, convex. Suture impressed. Constriction 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 7/8 whorl. Radial ribs straight, rather distinct, low, rather thin, rather densely placed, fading or absent towards the constriction and over (the first part of) the tuba (5-6 ribs/0.5 mm on the penultimate whorl). Spiral striation absent or fine, inconspicuous. Umbilicus closed. Aperture hardly tilted with regard to the coiling axis; columellaris distinct, directed downwards. Peristome simple, expanding; palatal side not or hardly sinuous, with an edge; basal side with an edge; basal edge moderately sinuous, slightly protruding; peristome with a palatal lip, expanding over the shell on the columellar side, little expanding on the parietal side.”
Diplommatina (Sinica) plecta – “H. 2.75. Durchm. 1.33 mm.” (Kobelt, 1902); Diplommatina plecta – “Height 2.7-2.8 mm; width 1.3-1.4 mm; index 1.9-2.1. Height aperture 0.5-0.7 mm; width 0.5-0.6 mm.” (Vermeulen, 1993)
Shell height – 2.75 mm; Shell width – 1.33 mm.
Type locality – “Kina Balu, N. Borneo” leg. A. Everett (Fulton, 1901)