180 CANCELLARIID&. 
outer lip greatly thickened in the middle and denticulated. £. 
mendicaria, Lam. (lvi, 91). 
Aucrra, H. Ad., 1860. 
Distr.—A. elegans, Ad. South Africa, 
Shell fusiform, thin; spire produced; whorls transversely 
striated ; aperture ovate; columella truncate, with a single oblique 
fold anteriorly; outer lip thin, smooth internally, expanded at 
the hind-part, and with the anterior margin crenulated. Differs 
from other groups in its expanded lip, which is not thickened, 
and from most others in the columellar fold. 
CoLuMBELLINA, d’Orb., 1843. 
Syn.—Zittelia, Gemmellaro, 1870. 
Distr.—4 sp. Cretaceous; France, India. C. ornata, d’Orb. 
(lvi, 92). Isp. Recent. 
Shell oval, thick, ventricose; aperture narrow, flexuous, 
narrowed in the middle, ending posteriorly in a prolonged lateral 
canal; outer lip much thickened and smooth within. 
CoLUMBELLARIA, Rolle, 1861. 
Distr.—Upper Jura; Europe. C. corallina, Quenst. (liv, 35a). 
Shell long-oval; body-whorl rather inflated ; spire moderate ; 
aperture wide below; outer lip rounded, not inflected in the 
middle, with strong revolving ribs within; columellar callus 
thin, showing the sculpture of the body-whorl. 
AmpuissaA, H. and A. Ad., 1853. 
Distr.—2 sp. West Coast of North America. A. corrugata, 
Rve. (ivi, 93). 
Shell bucciniform, longitudinally ribbed; spire elevated ; 
aperture rather wide, enlarging below and terminating in a wide 
anterior sinus; inner lip callous, plicate below; outer lip not 
thickened on the margin, plicate within. 
Famity CANCELLARIID#. 
Shell ribbed, cancellated by revolving lines; mouth produced 
or angulated in front; columella plicated, outer lip ribbed within. 
Teeth shaped somewhat like those of the family Conide, arranged 
in two rows; the head does not seem to be elongated, the ros- 
trum being rudimentary. There is no operculum. 
CANCELLARIA, Lam. 
Etym.— Cancellatus, cross-barred, 
Distr.—10 sp. West Indies, Mediterranean, West Africa, 
India, China, W. Coast of tropical America. Fossil, 60. sp. 
