AMMONITES Loscombi. 
TAR. CLAY XXII. 
Spec. Cuar. Discoid, compressed, umbilicated ; 
inner whorls concealed ; radii many, shallow, 
waved ; front rounded ; aperture obleng. 
Bue surface is smooth; the umbilicus small, and not 
very deep ; the aperture is about two-fifths the diameter 
of the shell long, the thickness being only one-third the 
length of the aperture. 
I was favoured with the loan of the shell here figured, 
by C. W. Loscombe, Esq. who obtained it from the blue 
Lyas of Lyme in Dorsetshire. It is in a good state of 
preservation, but the mouth had been broken in a way 
that led some genius to clear the stone from it, so as to 
give the appearance of a beaked termination to it: tab. 
173, A. rostratus, shews a proper termination. I have 
thought fit to figure the present as a caution against de- 
ception. . 
