340 
PALEONTOLOGY OF NEW-YORK. 
Euomi»hai!LS disjunctus (n. s.). 
Plate LXV. Fig. 8 ; and Plate LXVII. Fig. 4 a , 6. 
Shell discoid : volutions about one and a half, flat or depressed-convex 
on the lower side, with a wide umbilicus; upper side of volutions 
rounded : aperture suboval, the lower side being a little flattened. 
Surface unknown. 
This species is readily distinguished by the paucity of its volutions, which are 
not contiguous. 
PLATE LXV. 
Fig. 8. The lower side of a weathered specimen. 
PLATE LXVII. 
Fig. 4 a. The lower side of a cast of this species. 
Fig. 4 b. Profile view of the same. 
Geological position and locality. In the upper pentamerus limestone : Carlisle and 
Schoharie, Schoharie county. 
Eiiomphalus simiatus (n. s.). 
Plate LXIX. Fig. 1 a, b. 
Shell discoid, with about three volutions. Spire slightly elevated above 
the outer volution : volutions contiguous, rounded, a little more convex 
above than below : aperture oval; peristome sinuate on the lower side. 
Surface marked by numerous fine transverse strioe, which pass over the 
upper side of the volution in nearly a direct line, bending backwards 
on the periphery, and continuing in that direction to the middle of the 
lower side of the volution, where they again bend forward, leaving a 
sinuosity, which, in one specimen, is distinctly marked upon the surface 
for half a volution. 
This species is readily distinguished from the preceding by its more numerous 
and contiguous volutions, which are less flattened on the lower side. 
