eleva Tl, 
Fig. 1. Holoptychius Quebecensis, Whiteaves. Inner view of gular 
plates and fragmentary mandibles. 
Fig. 2. Eusthenopteron Foordi, Whiteaves. The left pectoral fin with 
its supports and showing scaled lobe and fin-rays ornamented with tub- 
ercules. 
44 
