330 



GEOLOGY OF THE EUEEKA DISTEICT. 



DEVONIAN— Coutmued. 



Genera and species. 



Pteropoda. 



Tentacnlites attennatns, Hall 



bellulus, Hall! 



gracilistriatus Hall 

 scalariformis Hall . . 



Styliola fissurella Hall 



var. intermittens Hall . . 



Counlaria (sp. ?) 



Coleolus he vis Walcott 



Hyolitlies (like H. aclis Hall 



Cephalopoda. 



Orthoceras (5 sp. ?) , 



Gomphoceras suboviforme Wakott . 

 Cyrtoceras cessator, H. & W 



nevadeuse Walcott 



Gouiatites desideratus Walcott 



kiugi, H. & W 



sp.? 



Crustacea. 



Bcyrichia occidentalis Walcott . 

 Leperditia rotuudata Walcott . . 



Vacilopoda. 

 Phacops rana Green (sp.) . . 



Dalmanites meeki Walcott . 



sp. ? 



Proetus nevadae Hall 



marginalis Conrad (sp.) . 



sp.? 



Phillipsia coronata, Hall ? 



Ham. of New York and Canada. 

 Hani, of New York and Canada. 

 Ham. of New York and Canada. 

 Up. Held, of New York. 

 Ham. of New York and Canada. 



Geol. Expl. Fortieth Par., vol. iv, ]>. 278. 



Geol. Expl. Fortieth Par., vol. iv. p. 279. 

 Like (G. discoidus Hall). 



Up. Held, and Ham. of New York, Can- 

 ada, etc. 



Ham. of New York, Pal., N. Y., vid. vii, 



p. 129, 1888. 

 Up. Held, of New York. 



Ham. of New York. 



CAEBONIFEROUS. 



Genera and species. 



Rhizopoda. 



Fnsilina cylintlrica Fischer, 

 robusta Meek 



Porifera. 

 Stromatopora sp. ? 



Acliiio:,m. 



Zaphrentis sp. ? 



Syringopora multattenuata?. 

 ChaHetes 3 sp. ? 



Upper. 



McCIiesny, sp. 



