PECULIAR DEVONIAN DEPOSIT IN IELINOIS 485 
rior of North America. It has been recorded? from Canada, 
Milwaukee, Wis., western Illinois, Missouri, lowa,and Manitoba. 
The Elmhurst specimens are generally smaller than those usually 
found in Iowa and other localities, but there seems to be no essen- 
tial difference in form. The remaining fish teeth are two new 
FiG. 2: 
species of the genus Dzplodus which have been described by Dr. 
Cakes Hastman, 
Among the brachiopods, the one identified as Lingwla ligea is 
the most abundant. It was originally described from the Ham- 
ilton in New York, but it also occurs in the Upper Devonian of 
the same state and has been recorded from the Devonian in 
* Iowa Geol. Surv., 1898, Vol. VII, p. 114; Am. Nat., 1898, Vol. XXXII, p. 476. 
