506 GEOLOGICAL SURVEY OF THE TEEEITORIES. 



If found in any of the Paleeozoic rocks, most geologists would refer it 

 to Loxonema of Phillips. Whether or not the nucleus or apex of its 

 spire was covered as in the typical species of Turhonilla I have been 

 unable to determine. It is a far larger shell, however, than the species 

 upon which that genus was founded. 



Specifically, this shell seems to be related to Turhonilla Spillmani, 

 Conrad, (Jour. Acad. N. S., vol. iv, new series, PI. 46, Fig. 28,) but its 

 vertical folds or costte are straighter, less crowded, and less numerous, 

 while its revolving lines are smaller and more numerous. Its aperture 

 also certainly differs in being decidedly more angular above, and proba- 

 bly somewhat so below. It may likewise be compared with Scalaria 

 MatJieivsonii, Gabb, from Cretaceous rocks of California, from which it 

 differs in having less convex volutions, or less rounded aperture, less 

 crowded vertical ridges, and more distinct and coarse revolving lines. 



Locality and position. — Coalville, Utah; from below the lowest heavy 

 bed of coal at that locality. Cretaceous. 



EuLiMA FUNicuLA, Meek. 



Shell subterete or elongate-conical; spire regularly tapering from 

 the middle of the body volution to the apex, or with very slightly convex 

 slopes; volutions about twelve, flattened ; last turn not much enlarged, 

 subaugular around the middle ; suture merely linear; aperture ovate or 

 rhorabic-subovate; inner lij) slightly thickened and reflected. Surface 

 smooth. 



Length, 0.65 inch ; breadth, 0.20 inch ; divergence of slopes of spire, 

 about 190. 



This shell has much the appearance of a slender ^iso, but it certainly 

 wants the umbilicus seen in that genus; its axis not being in the 

 slightest degree perforated. It is even more like some recent species of 

 EulimeUa^ and may possibly have to take the name JEuUmella funicula 

 when its generic characters can be more clearly determined from the ex- 

 amination of good specimens. The best examples I have seen do not show 

 the extreme apex of the spire, or very clearly the form of the aperture. 

 So far as can be determined, however, its columella does not seem to 

 present the straightness seen in Eulimella. I know of no closely allied 

 Cretaceous species. 



Locality and position. — Cretaceous, at Coalville, Utah. 



EULIMA? CHRYSALLIS, Meek. 



Shell small, elongate-subconoid, or subfusiform ; spire conical ; vo- 

 lutions about eight, flattened nearly to the slope of the spire ; suture 

 nearly linear ; aperture subovate ; inner lip a little reflected and mod- 

 erately arched ; outer lip unknown ; surface smooth. 



Length about 0,29 inch ; breadth, 0.12 inch. 



I am by no means sure this is a true Uulinia, not having seen any 

 specimens showing very clearly the form of the aperture, or the nature 

 of the outer lip. It has the general aspect of that genus, however, and 

 may be placed there i)rovisionally for the present, until better speci- 

 mens can be obtained for study. It will be at once distinguished 

 from the last, by its less produced spire, less numerous volutions, and 

 proportionally larger body-whorl. 



Locality and position. — Carleton's coal-mine, near Coalville, Utah. 

 Cretaceous. 



