288 H. C. Lea's Descriptions of 
CiauLA moBUsTa, Pl. XXIV. Fig. 4. Proceed. Bost. 
Soc. Nat. Hist., l. c. 
C. testà ovato-acuminatá, perforata, levi, crassà, albà ; spirà brevi, sub- 
acuta; suturis impressis; anfractibus quinque, ad suturam superiorem sub- 
latis ; anfractu ultimo rotundo ; basi levi; perforatione arctata, pro- 
funda ; aperturi ovata, magna. 
— Shell ovate auie perforate, smooth, thick, white; 
spire short, sub-acute; suture impressed ; whorls, five, some- 
what angled at the superior suture; last whorl round ; base 
smooth; perforation narrow, profound; mouth ovate, large. 
Long..10. Lat. .07 poll. 
Hab. Cape May, (N. J.) 
Remarks. The substance of this little shell is quite thick 
and stout. The surface is occasionally slightly wrinkled by 
minute lines of growth. "The whorls are five in number, in- 
crease rapidly in size, and have a small angle, or shoulder, 
immediately at the superior suture, which has thence the ap- 
pearance of being deeper than it is in reality. The mouth is 
arge, ovate, acute above, and rounded below, with a sharp 
Mes. lip, and continuous posteriorly. "The inner lip, indeed, 
is almost separated from the last whorl by the umbilicus, which 
is long, narrow and profound. 
This little ‘Shell I found on the beach at Cape May, and 
| I obtained but a single specimen, yet I feel no hesita- 
tion in pronouncing it distinct from any species hitherto de- 
scribed. In outline it is not unlike immature specimens pi 
the C. minuta, (Turbo minutus, Totten) but differs from it 
entirely in the thicker substance, more robust form, and - 
separation of the columella from the preceding W whorl. | 
color, too, they are essentially different. 
C-mopesta. PI XXIV. Fig. 5. Proc. B. S. N. H, l 
C, testå ovatà, imperforatà, lævi, tenui, diaphaná, virido-corneà með; spid 
vi hona, haud acutà; suturis parvis; anfractibus qoam e | 
infra ne fotudiao: 3 basi levi; aperturà ovatå, superné a acutà 
EN imperforate, smooth, thin, pee" 
