408 APPENDIX E. — PALEONTOLOGY. 



The specimens are all siliclfied, and I have been unable to ex- 

 amine the central portion ; the exterior, where weathered, presents 

 the appearance of a bundle of the columns of JFavosites, except 

 that they are generally four-sided, and the inner sides necessarily 

 narrower than the outer ones. 



FaPHRENTIS ? MULTILAMELLi. . 

 Plate I. Fig. 2, 



Coral free, turbinate, somewhat rapidly expanding, cells deep ; 

 lamellae numerous, thin ; outer portion cellular. 



From the specimens in my possession, it cannot be positively 

 determined that this fossil is a true FaphrentiSj but many features 

 induce this reference. 



Loc. Cloth Cap and Flat Rock, Great Salt Lake. 



Faphrentis stansburii. Hall, (n. sp.) 



Plate I. Fig. Sab. 



Tm-binate, free, or attached only by a pedicel nearly straight 

 or but slightly curved ; cup rather deep ; margin (when entire) 

 thin, lamellae numerous, thin, intermediate ones extending from 

 the margin one-third to one-half the semidiameter ; fossett distinct. 



Loc. Stanbury's Island, Cloth Cap, and Flat-rock Point, Great 

 Salt Lake. 



LiTHOSTRONTiON , (sp. indet.) 



Plate L Fig. 4 a b. 



Coral massive ; cells of medium size, deep ; lamellae crenulate. 



The specimen is much weathered, and, from the presence of an 

 ochreous incrustation, the specific characters cannot be clearly 

 described. It differs in the dimensions and other characters of the 

 cells from two species of the carboniferous period known to me 

 from localities east of the Mississippi River. 



Loc. Top of Stansbury's Island, Great Salt Lake. 



