Diaphera wilfordii ectyphus Vermeulen, 1990
“Differs from D. w. wilfordii only in having a distinctly wider shell. The two taxa inhabit areas which are separated by a wide geographical gap, therefore they are considered subspecies here. The juveniles have the aperture more or less identical to that of the juveniles of D. helenae.” (Vermeulen, 1990)
Vermeulen (1990) original descriptions on Diaphera wilfordi ectyphus – “Shell ellipsoid to ovoid. Apex not or hardly oblique. Whorls 6.25-7, somewhat convex, top whorls smooth; next whorls with the suture crenulated, otherwise approximately glabrous; the last 1.25-1.5 whorl with a more or less sharp, crenulated lower margin; the last whorl generally with inconspicuous radial riblets which become very distinct on the last 0.5 whorl. Umbilicus rather narrow. Aperture approximately orbicular to obliquely ovate. Peristome somewhat thickened on the palatal side. Teeth three: one distinct, projecting angularis starting on the peristome; one deeply set columellaris; one deeply set palato-basalis.”
“Measurements. - Height 5.2-7.1 mm; height minus detached portion 3.5-4.5 mm; width 2.9-3.3 mm; height of aperture 1.5-1.9 mm; width of aperture 1.5-1.9 mm.” (Vermeulen, 1990)
Type locality – “Sabah. Tawau zone near Lahad Datu, Kirk Cave” (Vermeulen, 1990)
Other locality – “S. Segama” (Vermeulen, 1990)
Tawau, Sabah, Malaysia.
“Calcicole.” (Vermeulen, 1990)