38 
ACTINOPTERYGII. 
Fig. 10, a. 
x 
Fig. 11. 
Fig. 11.—Left maxilla (mx.) and palatine {pi.) 
of the recent Acipenser, outer aspect. 
Fig. 10, b. 
Fig. 10.—Left maxilla of Gyrosteus mirabilis, outer (a), anterior (b), and 
inferior (c) aspects, one-quarter nat. size. [No. P. 3356/.] 
s., symphysial extremity ; x., palatine process. 
