| Diagnosis: |
Shell: quite thick and strong, a rather high conical spire, short siphonal canal, open and twisted; body whorl is very large, spherical, covering much of the preceding one, involute, suture is hardly incised; aperture is ovoidal, outer lip has an external thickening and thin internal folds; in adults, columellar lip forms a large callus that completely covers the ventral surfaces of the body whorl; no sculpture except for a rib with one, two of three hardly visible blunt nodules, on the periphery of the dorsal surface of the body whorl; color is yellowish or yellow brown, callus and lips are white; operculum is horny, yellowish, has an apical nucleus, roughly triangular, fringed inner and outer margins. Body: wide triangular foot, many nassariids, two appendices at the posterior end; very long mantle siphon; radula is rachiglossan. |