CEETACEOUS PERIOD. 197 



Genus EULIMELLA Forbes, 1846. 

 Eulimella funicula Meek. 



Plato XVIII, fig. 6 a. 

 Eulimella ? funicula Meek, 1872, Geol. Surv. Montana, Idaho, Wyoming, and Utah, 50C. 



Shell rather small, slender, elongate-conical ; sides, from the last 

 volution to the apex, slightly convex ; volutions ten or twelve, their sides 

 nearly flat or slightly convex ; last volution subangular below the middle ; 

 suture linear; aperture oval, rounded anteriorly, subangular posteriorly; 

 inner lip a little thickened ; columella imperforate, nearly or quite straight, 

 and in a line with the axis of the shell; sm'face smooth, apparently polished. 



Length, about sixteen millimeters ; angle of lateral divergence, eighteen 

 or twenty degrees. 



Mr. Meek referred this species to Eulima with much hesitation, and 

 suggested (loc. cit.) that it might subsequently be found, through the dis- 

 covery of more perfect specimens, to belong to the genus Eulimella. None 

 of our examples show the apex, and it is, therefore, not known whether it 

 is sinistral or not, but the one selected for figuring shows the columella to 

 be simple, and nearly or quite straight, as in true Eulimella. I therefore 

 refer it provisionally to that genus. 



Position and locality. — Strata of the Cretaceous period ; North Fork of 

 Vu-gin River Utah. 



Family PYKAMIDELLID^. 



Genus TUEBONILLA Leacb, 1825. 



Subgenus CHEMNITZIA Conrad, 1860. 



Turbonilla (Chemnitzia) melanopsis Conrad (?). 

 Plate XVIII, fig. 10 a. 



Among the fossils obtained from near the west crossing of Virgin River, 

 Utah, are some imperfect examples of a shell that seems to be identical with 

 T. melanoims Conrad. As these are all too imperfect to base a full descrip- 

 tion upon, I copy that of the author from the Joui'nal of the Academy of 

 Natural Sciences of Philadelphia, (2d series, vol. iv, p. 287): — "T. (Chem- 



