87 
PATELLA equalis. 
TAB. CXXXIX — Fig. 2. 
Spec, Char. Conical, smooth ; base obovate ; 
back nearly perpendicular. 
There are some faint signs of radii upon the surface of 
this ; its height is nearly equal to its width ; it is rather 
broader towards the front, and the apex, which is rather 
obtuse, is so excentric as to be almost perpendicular over 
the edge ; the surface is covered with a light brown 
epidermis. 
Good specimens of this are rarely found in the Suffolk 
Craig. Mrs. Cobbold favoured me with this from the 
Holy wells estate near Ipswich. 
PATELLA rugosa, 
TAB. CXXXI X.—Fig. 0 . 
Spec. Char. Depressed, obovate, radiated; apex 
excentric, depressed, slightly recurved ; back 
concave above, with reflected undulations. 
Syn. j Park, org . rem, 3. 
The radii are rather numerous and strongly marked ; 
the lines of growth are too faint to make a distinct decus- 
sation, but there are generally two or three large undu- 
lations around the shell which approach each other behind 
