FOSSILS OF THE CARBONIFEROUS. 



257 



Illinois, is the largest American species of the genus. It varies materially 

 from Z>. majiisculus in the character of the columellar lip. 



Formation and locality. Lower portion of Lower Carboniferous lime- 

 stone in a canon a little north of Pinto Peak, Eureka District, Nevada. 



.CHAMBER 



SHELL 





FIG. 3. Section of the large specimen figured on plate xxiii, fig. 6. The chamber of the interior 

 whoils is filled iu with calcite, which leaves only the outer whorl clearly outlined, including a section 

 of iff chamber. 



Bellerophon textilis Hall ? 

 Plate xviii, fig. 1H. 



Bellerophon canceUatus Hall, 1850, Trans. Albany lust., vol. iv, p. 31 (not B. cancel- 



latits Hall, 1847, Pal. X. Y., vol. i, p. 307). 

 Bellerophon textilis Hall, 1877. Proposed instead of />. cttnccllatus Hall (preoccupied). 



Miller's Cat. Anier. Pal. Foss., p. 243. 



Our specimens are all more or less crushed and distorted, but com- 

 17 c n w 



