FOSSILS OF THE CARBONIFEROUS. 257 
Illinois, is the largest American species of the genus. 
It varies materially 
from B. majusculus in the character of the columellar lip. 
Formation and locality—lLower portion of Lower Carboniferous lime- 
stone in a canon a little north of Pinto Peak, Eureka District, Nevada. 
\ 
Fig. 3.—Section of the large specimen figured on plate xxiii, fig. 6. The chamber of the interior 
whorls is filled in with calcite, which leaves only the outer whorl clearly outlined, including a section 
of its chamber. 
Bellerophon textilis Hall ? 
Plate xviii, fig. 18. 
Bellerophon cancellatus Hall, 1856, 
Trans. Albany Inst., vol. iv, p. 31 (not B. cancel- 
latus Hall, 1847, Pal. N. Y., vol. i, p. 307). 
Bellerophon textilis Hall, 1877. 
Proposed instead of B. cancellatus Hall (preoccupied). 
Miller’s Cat. Amer. Pal. Foss., p. 243. 
Our specimens are all more or less crushed and distorted, but com- 
lj cD WwW 
