i! 
AMMONITES Nutfieldiensis* 
TAB. CVIIL 
Spec. Char. Involute., volutions four or niore^ 
nearly concealed; radii numerous., prominent, 
with shorter intermediate ones over the round- 
ing front. Aperture obcordate. 
Septa rather numerous, elegantly lobed and sinuated in 
the usual way; the intermediate shorter radii , or rather 
undulations , are often in pairs; they extend nearly half 
way over the sides: the longer radii are most prominent 
near the centre. The mouth is two-fifths of the diameter in 
length, and about the same in width; the front rounded. 
o ' 
Plentiful in the green Sandstone, above the greater beds 
of Fullers Earth in which the fine-coloured Sulphate of 
Barytes, Brit. Min. tab. 237, is imbedded. It is found from 
three inches to a foot in diameter, if I may include some 
specimens which vary a little in the radii. The present 
species has two or three short ones in a set, but some appear 
to have radii regularly the whole length all round. Some 
also appear to be more compressed, others rounder. The 
specimens are chiefly casts in dark Irony clay, ocliraceous 
externally, and have sandy Quartz and Chlorite about them. 
A specimen which I have lately received from Hythe in 
green sand is the same species. 
