columellar การใช้

• The columellar one that slants downwards, and three long palatals.
• Call, shorter, with a thick and heavy columellar lip.
• The Aperture is obliquely ovate with a single distinct columellar fold.
• The columellar tooth comes in higher up than in that species.
• The columellar margin is reflexed above, nearly covering the perforation.
• The pollen have a net like or reticulate sculpturing with columellar structures.
• An outer and an inner ( columellar ) lip are generally recognized.
• The columellar fold is strong, and is colored purple or white.
• The peristome is thin, membranaceous, columellar margin much curved inwards.
• The columellar edge simple, making an angle with the parietal edge.
• Columellar margin straight, hardly expanded; no parietal callus.
• Columellar margin is nearly straight, very narrowly dilated above.
• The nucleus is subcentral, but approaches the basal and columellar margins.
• The columellar area is white and more or less eroded.
• It is not so much small as concealed by the columellar lip.
• The anal sinus is conspicuous, and the columellar margin is straight.
• The columellar callus has a characteristic faint silvery gloss.
• The columellar margin is tubercled above, then regularly concave and conspicuously enamelled.
• The columellar shelf is flat and rather wide ."
• The rhomboidal aperture contains a basal and columellar sinus.