Acmella conica Vermeulen & Junau, 2007
Vermeulen & Junau (2007) original descriptions on Acmella conica – “Shell minute, conical with about flat sides and a rounded apex, slightly translucent white, somewhat shiny. Whorls 4-4 1/8, convex. Suture impressed. Protoconch about smooth at 40 x magn. Radial sculpture teleoconch: inconspicuous growth lines only. Spiral sculpture teleoconch: locally traces of a very fine, dense spiral striation, only just visible at 40 times magn. Umbilicus open, narrow. Aperture about elliptic with a flattened parietal side, rounded above, broadly rounded below, transition from parietal to columellar side somewhat angular. Peristome simple, reflected on the columeller side, not so on the palatal side.”
Acmella conica – “Height c. 0.85 mm; width 0.70-0.75 mm. Apertural height 0.25-0.30 mm, width 0.30-0.35 mm.” (Vermeulen & Junau, 2007)
“Acmella minutissima (Maassen, 2000), from Sumatra and Borneo, is wider (0.8-1 mm wide), has a finer spiral sculpture, and an aperture with a more angular transition from the parietal to the columellar side. An undescribed species from Sabah looks very similar in most aspects, but has a more compressed spire (shell height 0.65-0.75 mm, with 3½-3 7/8 whorls). Differs from A. conica and A. obtusa, below, in having a broadly rounded apex and an ovate aperture.” (Vermeulen & Junau, 2007)
Type locality – “Malaysia, Sarawak, 2nd div.: Lower Tatau River valley, Bukit Sarang group” leg. S. Lee (Vermeulen, 2007)
“Lowland rainforest on and near limestone bedrock.” (Vermeulen & Junau, 2007)