* 
new Species of y ow 395 
The spire in young specimens is nearly pointed, 
but in the adult is truncated, presenting rarely more 
than three whorls; in some specimens a black band 
passes round each whorl near its upper edge. The 
operculum is striated in oblique curves. 
ANCULO TUS KinTLANDIA NUS. 
Pl. II. fig. 4. Cabinets of J. G. Mun Mrs. 
Say, and Dr. J. P. ween 
Shell turreted, with four convex whorls; spire 
truncated, the truncation generally destroying one 
of the volutions ; the body-whorl slightly ventricose ; 
color dark-olive ; aperture sub-ovate ; base attenu- 
ated, within eiii and banded. Length 
i inch. Breadth, 4 inch. 
Another species which I owe to the Mone of 
Mrs. Say. It is found in the same situations with 
A. carinütus ; it resembles very much a Mevanta, the 
spire being quite as much elevated as in most of the 
species of that genus; the young are wah beauti- . 
- banded. 
ART. XIII. — MONOGRAPH OF THE SPECIES OF PUPA 
FOUND IN THE UNITED STATES ; WITH FIGURES. By 
. Aveusrus A. Govrp, M. D. (Read November 3d, 1840.) 
Having recently become interested in the exami- 
nation of the American species of the genus Pura, 
I have found very great confusion and uncertainty 
prevailing in regard to them. The objects them- 
