199 
CARDITA. 
Gen. Cuar. An inequilateral equalvalved bivalve, 
with recurved beaks; hinge teeth two, unequal, 
the shortest beneath the beaks; the lateral one 
longitudinal, beneath the insertion of the car- 
tilage. 
CARDITA striata. 
TAB. LXXXIX.—Fig. 1. . 
Spec. Cuar. Quadrangular,. gibbous; the beaks 
placed at one of the angles; obliquely striated 
from the beaks to the edge, — 
er 
Nearry right-angled; the anterior side rounded; the 
length greater than the width: the strie are curvilinear. 
This is from Swanswick in Somersetshire, by favor of the 
Rey. H. Steinhauer; it is in ochraceous Limestone with a 
sandy aspect. It appears to be the cast from the mould of 
the outside of the shells. Walcot’s (Bath Fossils) Fig. 11, 
probably belongs to this species; he observes, ‘‘ at one of 
the angles are the beaks which are hooked, their points 
curved outwards; striated from the beaks to the margin. 
Free stone.” 
