m 
AMMONITES Sutherlandiae. 
TAB. DLXIII. 
Spec. Char. Discoid, gibbose, smooth ; whorls two 
or three,, partly exposed ; umbilicus large and 
deep ; aperture obovate, nearly circular. 
Syn. A. Sutherlandiae. Murchison in Geol. Trans . 
2d Series, vol. ii. pt. ii. p. 323. 
A plain thick Ammonite with very few whorls, small 
portions only of the inner turns are seen within the wide 
umbilicus. The front is regularly rounded ; the length 
of the aperture is nearly equal to half the diameter of 
the shell. 
Discovered by R. I. Murchison, Esq. in the white 
Sandstone that composes the hills of Braambury in the 
district of Brora *, Sutherlandshire. It is named, at the 
request of Mr. Murchison, in compliment to the Mar- 
chioness of Stafford as Countess of Sutherland. 
Fig. 1. represents a specimen that was found by the 
quarrymen after Mr. Murchison’s visit to the district, 
and was reported to be a fossil human skull, whereon 
the Marquis of Stafford ordered it to be sent to London 
and presented to the Geological Society, in whose cabi- 
net it now is. It is so compressed as to resemble a Sea- 
phites ; its diameter is double that of the figure. 
Fig. 2. is from the first discovered specimen, and is 
two-thirds its diameter. 
* For an account of this district see Mr. Murchison’s very 
valuable and elaborate paper in the Geol. Trans. 2nd Series, 
vol. ii. part ii. p„ 293. 
