342 Fossil and Recent Shells. 
VENERUPIS. 
VW. subvexa. Shell subglobose, rather thin and fragile; beaks 
central, elevated and inclined a little forwards. Length, Dine then on 
~ Locality.— James river, near Smithfield, Va. — 
Peres “ CARDITA. x 
C. alticostata. ” Shell Sireesrnd convex, with about neil  twor 
ly elevated nodulous ribs, which on the anterior wpe: are 
laterally carinated. Length, two inches. a 
ae Fr —Claiborne, Alab. London clay. Extremely bone 
dant and very variable in outline. 
ASTARTE. 
on A. neat Shell oval, with concentric sulei 5 
se or fold terminating in a slight emarg 
diaiet belie 3 umbo flattened; apex acute but not prominent 
muscular i impressions a httle clevared and very distinct. Length, half 
an inch 
~ Locality.—Claiborne, lab.” London clay. potest 
“2. A. ungulina. Shell slightly elevated or obovate, aie con- 
vex, with fine concentric sulci becoming obsolete with age 5 5 3 
inchning a little forward and the apex acute; inner = entire 
lunule none. Length, half an inch. - 
Loman oe the preceding species. 2a 
rz 
PECTUNCULUS, inne 
= P. cuneus. Shell cuneiform, broad, snctsitnes end! dae 
and forming an angle at the umbonial slope. Length, half an ineh. 
This is a remarkable species, very unlike any I have. Besos 
Locality. —Claiborne, Alab. London clay. ant , 
2. P. trigonella. Shell subtriangular, ior a rac eo 
strie ; anterior margin nearly rectilinear and subangular att 9,855, 
tresaity:; ; inner margin serrate. Length, half an inch. 
‘Locality.—Claiborne, Alab. London clay. 4 
3. P. stamineus. Shell suborbicular, ventricose < asd distant’ ra- 
diating and finer =e lines, crossed by minute eee® —_ 3 
inner } Length, one inch and a half. : 2 
Levaliy—Foun rib the ene anelnis is ies weds 2 
or oa te TER 4 
ee 
% 7 ee F aa jee 
en ee a ee eon hee cae: ee eee 
