83 
CAN CELLARIA. 
Gen. Char. Oval, subturrited ; last whorl more 
or less ventricose ; aperture almost entire, 
lower angle either slightly canaliculated or 
produced into a short recurved beak ; outer 
lip sulcated within ; inner lip expanded ; 
columella plaited. 
But few of the species of this genus are much elon- 
gated, the form of the last whorl generally giving them 
an ovate contour. The decussated ridges upon the 
surface have given an apt name to the genus, although 
in some species the transverse ridges are not sufficiently 
prominent to give the appearance of lattice work ; while 
the longitudinal costse are strong and sharp : in a few 
species varicose sutures are formed at different periods 
of growth by the inflated outer lip ; such species ap- 
proach to Murices, but are well distinguished by the 
folds upon the columella ; these folds are few, very 
prominent, and compressed ; they are sometimes accom- 
panied by two or three irregular protuberances. Some 
species are elegantly colored ; they all belong to marine 
animals. 
Auricula simulata of tab. 163 is a species of this genus, 
with only one proper plait upon the columella. 
CANCELL ARIA quadrata. 
TAB. CCCLX. 
Spec. Char. Ovate, elongated, cancellated, 
without either varices or beak ; two obtuse 
plaits upon the columella, besides the spiral 
edge ; outer lip sharp, entire, striated 
within. 
An elegant shell, a little resembling Cancellaria (Auri- 
cula) simulata, but more pointed and very differently 
marked ; it has also another fold upon the columella : 
the surface is covered by small hollow squares formed by 
a number of elevated lines that cross each other with 
much regularity, of which however the transverse are 
rather the strongest : all the whorls are convex ; the last 
occupies nearly two-thirds the length of the shell. 
This species may be arranged in the last of the four 
sections Mr. G. B. Sowerby has divided the genus Can- 
