99 
EUOMPHALUS Pugilis. 
TAB. DCXXI. — Jig. 2, 3, & 4, 
Spec. Char. Concave both above and below ; vo- 
lutions gradually increasing, rounded, with two 
rows of tubercles, one above, the other below. 
Syn. Euomphalus Pugilis, PliilL Yorks. 22h. 
The volutions of this Euomphalus are somewhat less 
angular than those of E. pentagonalis , and the upper 
side is generally, but not always, more concave. The 
tubercles beneath are sometimes very slightly prominent 
or irregular, when it approaches to E. hifrons , Phill. loc. 
cit. 225. t. 13. f. 4, which has tubercles on the upper side 
only, and is probably a variety of it ; they are both found 
at Bolland. The E. Pugilis also occurs in the county 
of Kildare. E. nodosus , M. C. tab. 46, having tubercles 
on the under side only, may be a third variety; the 
three do not differ materially in anything but the num- 
ber of tubercles, which vary very much in size even on 
the same individual. 
I am indebted to Mr. Gilbertson for the specimens 
figured. 
