PLATE 36, 37. 
FIG. 9 . 10. 
CONCHYLIOLITHUS Anomites (aculeatus) subro- 
■ tundus, valva concava lasvi, altera gibbosa retrorsum 
aculeata : aculeis raris adpressis brevissimis, cardine 
subcurto. S. p. 
A fossil shell. Original an Anomia. Imperforate, with 
one of the valves concave; the other convex and gibbous. 
Hinge close, straight, but less extended than in most other 
Anomita of the same division. (Syst. G. 6. Anomita. b. b.) 
The convex valve prickly; the prickles few, scattered, 
very minute, short, oppressed or squeezed flat to the sur- 
face, and pointing backwards, or towards the beak. The 
beak small and hooked. 
This is the least of our imperforate, straight-hinged 
Anomit(Z. It is seldom larger than the specimen now repre- 
sented ; but frequently occurs much smaller. It is found 
near Bakewell and Buxton, 
Fig. 9. Shows the concave side of the specimen. The 
beak imperfect and broken, which gives it the appearance 
of being perforated with a large hole. This appearance is 
very common in the hooked beaks of the imperforate Ano- 
mita, and has been mistaken for a real foramen. 
10. Represents the convex side of the same specimen. 
