PLATE 15, 15. 
ANOMIT.®. LIMESTONE. 
FIG. 1. 
CONCHYLIOLITHUS Anomites (giganieus) trans- 
versim oblongus, ad latera dilatatus, loiigitudinaliter 
sulcatus striatusque : striis scabriusciills irregularibus, 
Talva altera gibbosa. S. t. 
A petrified shell — The original an Anomia, imperforate, 
transversely oblong, dilated at the sides. Hinge straight, 
extending the whole breadth of the sh oil. One valve flat 
or concave; the other very gibbous, longitudinally fur- 
rowed and striated. The stria3 are irregular, frequently 
confluent, and rough with small tubercles, which in some 
specimens take the form of short, blunt, appressed spines. 
The furrows are deep, and distant from each other. The 
beak of the larger valve is blunt and rounded ; sometimes 
curved considerably over the hinge. 
Common in the limestone about Buxton. 
This Is a very large shell : I have seen It near a foot in 
breadth, and eight or nine inches from the beak to the 
opposite extremity : its more usual size is that of the figure. 
Specimens of this fossil very rarely occur in which the 
smaller valve is visible. When it can be traced, it appears 
