SWALLOW—DESCRIPTION OF FOSSILS. 635 
Descriptions of New Fossils from the Carboniferous and 
evonian Locks of Missouri. By G. C. Swatiow, State 
Geologist. 
BRACHIOPODA. 
STROPHODONTA NAVALIS, Nl. Sp. 
ions and implantations. The punctate structure is very ob- 
vious where the shell is worn or exfoliated. 
Length, 1.40;* breadth, 1.44; depth of ventral valve, .61. 
e variety subnavalis is larger, less carinated, and more 
regularly arched. 
‘rom the base of the Devonian rocks in Callaway county. 
STROPHODONTA CYMBIFORMIS, N. sp. 
om small, strongly — scarcely — _. 
I, 
e n 
edges recurved and arched to meet the imp 
border, and form the sinuses leading from the central aay 
* The measurements in this paper are in inches. 
