PG ACP is 
TITANICHTHYS AGASSIZ, Newb. (p. 138). 
Fig. 1. Basal portion of cranium and supra-seapulas ; outside. 
2. Inside of cranium and supra-scapulas. 
Both figures one-seventh natural size, linear. 
Cleveland shale, Sheftield, Lorain County, Ohio. 
ww 
oC) 
we 
