APPENDIX I. 40 C 



The few fossils collected on the banks of the Churchill, from hxalities 

 Nos. 5 and G, are insufficient to establish the exact age of the rocks in 

 which they occur, but it is probable that both are referable either to 

 the top of the Trenton Limestone or to the lower part of the Hudson 

 Eiver gi-oup. 



7. From Stony Mountain, Manitoba. 



In 1875 Mr. R. W. Ells made an interesting collection of fossils from 

 this locality, on behalf of the Survey, which has not hitherto been 

 reported on. Stony Mountain, it may be mentioned, is a hill some 

 fifty feet in height, on the western bank of the Red River, not far from 

 Fort Garry. The species obtained by Mr. Ells are as follows: — 



Choetetes delicatulus, Nicholson. Two specimens. 



Monticulipora, Sp. One good example. This is the common Trenton 

 and Hudson River species which Mr. Billings identified with 

 Stenopora fibrosa, Goldfuss. It is also the coral figured by Prof. 

 Hall on Plate 24, figures 1 g, h, i. (coet. excl.) of the first vo- 

 lume of the Pahrontology of New York, as one of the forms of 

 Cha'tetes lycoperdon. Say. Dr. H. A. Nicholson places the coral 

 represented in these figures among the synonyms of Choetetes 

 Fletcheri, Edwards and Haime. In C. Fletcheri, however, the coral- 

 lites are said to be rounded or oval, with compai-atively thick 

 walls, whereas in the present species the corallites are clearly 

 polygonal, with thin walls. 



Monticulipora {Biplotrypd) Whiteavesii f Nicholson. Two small speci- 

 mens growing on the shells of brachiopoda. 



Favosites proHficus, Billings. A fine large specimen, identified and 

 labelled by Mi\ Billings himself. 



Streptelasma corniculum, Hall. Several well-preserved examples of a 

 rather small Streptekis7iia, with a well-developed and smooth 

 epitheca, precisely similar to the small individuals of S. comi- 

 cula figured by Rominger. These Stony Mountain Strepfelas/me 

 represent the Hudson River group coral commonly refeiTed to 

 S. corniculum, rather than the t^^ical form of that species from 

 the Trenton Limestone. 



Crinoidal Stems. Detached joints only. 



Ptilodictya (Stictopord) acuta, Hall. A few characteristic fragments. 



Strophomena nitens, Billings. Eight perfect examples of an entirely 



smooth form of this species. 

 Strop?wjmena Hecuba, Billings. One doi*sal valve. 



