344 Fossil and Recent Shells. 
MELONGENA. 
M. alveata. Shell subglobose, with revolving strie; a few of 
which are distinct ; body whorl with a broad channel above; spire 
very short, pebenalla. callous, profoundly so above; basal igpesne 
tion profound. Length, one and a half inches. 
Locality.—Claiborne, Alab. London clay. 
CREPIDULA. 
 C. lirata. Shell oblique, elevated, compressed: ly 
ribbed; beak prominent, incurved, and turned to one side. 
Tsediy 2 Crciborne, Alab. London clay. 
~ SOLARIUM. 
1. S. elaboratum. Shell discoid, with numerous st cren- 
ulated striz of different sizes; beneath slightly channeled on the sub- 
margin, with a few strong grooves; margin of the umbilicus. pro- 
foundly crenulated; the crenulations extending to the “ie aper- 
ture nearly circular.. Length, one third of an inch. Bae 
Locality.—Claiborne, Alab. London clay. 
2. S. cancellatum. Shell elevated, cancellated; volutions an- 
gular, channeled at the suture; umbilicus cancellated; come 
cular. Length, one fifth of an inch. 
Locality.—Suffolk, Va. 
+HBy 
SIGARETUS. 
S. bili. Shell obliquely oval, convex, with fine crowded s strie Fe at 
volving in pairs. Length, one third of an inch. 
Locality—Claiborne, Alab. London clay. 
TYPHIS. 
T. gracilis. Shell fusiform, elongated, iy pee sin 
eight; ribs of the body whorl 4, thickened and slightly refi 
with two or three arched scales on each; margin of the aperture el 
evated but not reflected. Length, one third of aninch. 
saan -—Claiborne, Alab. London clay. 
2. T. acuticosta. This shell is described by me asa Murex in. 
Jour. era Nat. Sciences, Vol. 6. 
RECENT SHELLS. 
+ | i LUCINA. 
L. Floridana. Shell suborbicul 
with regular | igh 
centric strie, and covered with a very thin oon alae 
