もっと例文: 1 2
- Bullettes at the adapical ends of the connecting rings are small.
- The narrow endosiphotube, left within the adapical portion, may contain diaphragms.
- The siphuncle is close to the venter and found only in the adapical portion.
- The shell is yellowish brown, with a white sutural line and many prominent white papillae along the adapical border of the whorls.
- The columellar edge forms a thick outgrowth which extends over the aperture, provided with denticles which increase in size towards the adapical side.