C 21 ] 
High waved cockle. Shells with many ribs from 
the hinge to the edges: beak pointed: margin 
with ^ high wave. 
Common upon the ploughed fields. 
FIG. XXXI. 
Ribs fmaller and more numerous than in thq 
jaft: the edge of the ribs is armed with rows 
of fhort fpines. 
Found without the fpines upon the ploughed 
fields, with the fpines when lodged in free-ftone. 
FIG. XXXII. 
Shells oval : ribed from the hinge to 'the 
edges: margiii even: beak imperfeft. 
' Found upon King's-down. 
The living Anomiae have all been found 
lurking in the nooks between the branchings of 
corals, or cavities of rocks. They lie therein 
lifted upon their flat furfaces, or horifontally, 
without any prop or folid body to reft on; but 
«ire upheld or fuftained only by a ftrong adhefi- 
on of their tubes or perforated beaks to the fides 
of the cavities, as if in the aftion of fucking; 
and 
