214 



REPORT OF NATIONAL MUSEUM, 1884. 



No. of 

 mens.' 



Dbvonian— Continned. 

 Pteropoda — Continned. 



Coleoltit tenuicinctum, Hall 



Gonularia nndulata, Conrad 



Number of species, 6 j number of 

 specimens, 16. 



Cephalopoda. 



Orthoeeras crotalum. Hall . . 



nuntium, Hall . . 



guhulatum. Hall . 



Telamon, Hall . . . 



Sp.? 



GoniaMtes discoidetis, Hall . . 



Devonian— Continued. 



Cephalopoda — Continued. 



Ooniatites Sp. 1 



A^autilus liratus, var. juvenis, Hall 



Number of species, 8 ; number of 

 specimens, 66. 



Pcedlopoda. 



Phdcops rana. Green 



Dalmanites Boothii, Green 



Homalonotus DeKayi, Green 



Slickensides 



Number of species, 4; number of 

 specimens, 61. 



No. of 

 speci- 

 mens'. 



Genera, 65; species, 120; specimens, 1,599. 



The above collection will be of value iu tlie comparative study of 

 faunas from the Devonian, as it is from one locality and shows varia- 

 tions in the species not observed elsewhere. 



"The general character of the fauna of the Cambrian, Silurian, 

 Devonian, and Carboniferous strata of the Eureka and White Pine 

 mining districts of Central j^evada is given in this work more to illus- 

 trate the stratigraphic succession and equivalency of the geologic hori- 

 zons with those described elsewhere than as a detailed monograph of 

 the invertebrate fossils, since for the latter purpose much more exten- 

 sive collections are necessary to represent the large fauna of the Paleo- 

 zoic system of Central Nevada than we have at present." 



