826 



GEOLOGY OP THE EUEEKA DISTRICT. 



DEVONIAN Continued. 



Genera and species. 



Actinosoa Continued. 



Cyathophyllum davidsoni M. Ed . 



2n. sp 



sp.? 



Acervularia pentagona Goldfuss. . 





Smithia hennahii Lousdale (sp) ' 



Pachyphyllnm woodman! White, sp j 



Diphyphylluui simeoense M. Ed I X 



I'tychophyllum ? infuudibuluni Meek I 



Cystiphyllum ainericanum M. Ed x 



2 n. sp 



Polyzoa. 



Fenestella, 2 sp. ? 

 Thamniscns ? sp ? 



Brack iopoda. 



Lingtila alba-pineusis Walcott 



liena Hall 



ligea Hall 



ligea, var. nevadensis Walcott 



lonensib Walcott 



melie Hall 



whitei Walcott 



sp. f 



Discina lodensis Hall 



minuta Hall?.. 



sp. 



Pholidops bellula Walcott 



quudrangularis Walcott 



Orthis impressa Hall 



nmcfailanei Meek 



X 



X 



X 



X 

 X 

 X 



tulliensis vanuxem 



Skenidinm devonicum Walcott 



Streptorhynchua cbemungensis Conrad 



(sp.) 

 chemungensiSjVar. pan- 



dora Billings, 

 cheinungensis, var. per- 



versa Hall. 



Strophomena rhomboidalis Wilckens, 

 (sp.) 



Strophodonta arouata Hall 



calvini Miller 



canace H. & W 



deraissa Conrad (sp.) 



ineqniradiata Hall 



patersoni Hall 



perplnna Conrad (sp.) ^ 



punctulifera Conrad (sp.).i X 



x 

 X 

 X 



X 

 X 



X 

 X 



X 

 X 

 X 



X 

 X 

 X 



X 

 X 

 X 





X 

 X 



X 



X 



X 

 X 



X 

 X 



X 

 X 



X 



X 



X 



Remarks. 



Ham. of Iowa. 



Identified by Meek from White Pine 



District, Nevada. 



Geol. Expl. of Fortieth Par., vol. iv., p. 32. 

 Devonian of Iowa. 



Up. Held, of New York, Falls of Ohio, etc. 

 Geol. Expl. Fortieth Par., vol. iv, p. 28. 

 Up. Held, of New York and Falls of 



Ohio ; Ham. of New York, etc. 



Ham. of New York. 

 Ham. of New York. 



Pal. of New York, vol. iv, p. 14. 



Ham. of New York. 

 Ham. of New York. 



Ch. of New York. 



Type from Mackenzie River, British 



America. 

 Ham. of New York. 



Up. Held., Ham., and Ch. of New York. 

 Up. Held, of New York and Canada. 

 Up. Held, and Ham. of New York. 

 Up. Held. New York, Falls of Ohio, etc. 



Devonian of Iowa. 



Devonian of Iowa. 



Geol. Expl. Fortieth Par., vol. iv, p. 246, 

 1877. 



Devonian of Iowa, New York, etc. ; Mac- 

 kenzie River, British America. 



Up. Held, of New York. 



Up. Held, of New York. 



Throughout the Devonian of New York. 



Throughout the Devonian of New York. 



