169 . 
170 . 
171 . 
172 . 
173 . 
174 . 
(69) 
Lepidosteus platystomus Raf. Short-nosed Gar. (M. V. 342 ; 
Nelson 51.) 
Occurs throughout the state in the larger streams. It is much 
more abundant in tributaries of the Mississippi than in the Lake. 
The commonest gar in the 111. R. Peoria, Pekin. 
Genus LITHOLEPIS , Rafinesque. 
Litholepis spatula (Lac.) Jor. Alligator Gar. (M. V. 342 ; 
Litholepis adamantinus Nelson 51.) 
In the Mississippi and Ohio, not common, “occasionally stray- 
ing up smaller rivers into the interior of the state.” (Nelson.) 
Order SELACHOSTOMI. 
Family POLYODONTID^E, (the Spoonbills.) 
Genus POLYODON , Lacepede. 
Poly odon folium Lacepede. Paddle-fish, Duck-bill, Spoon-bill. 
(M. V. 344 ; Nelson 51.) 
Common in all the larger streams, especially southward. Ohio 
R. at Cairo ; 111. R. at Pekin, Peoria, &c. 
Order CHONDROSTEI. 
Family ACIPENSERIDJE, (the Sturgeons.) 
Genus ACIPENSER, Linnaeus. 
Adpenser maculosus Le Sueur. Spotted Sturgeon. (M. Y. 345 ; 
Nelson 51.) 
Ohio and Mississippi rivers, probably not in the Lake. 
Adpenser \ rubicundus Le Sueur. Lake Sturgeon. (M. Y. 345 ; 
Nelson 51.) 
Yery abundant in the Lake ; whether found in the Mississippi 
or not I do not know. 
Genus SCAPHIRHYNCHOPS, Gill. 
Scaphirynchops platyrhynchus (Raf.) Gill. Shovel-nosed Stur- 
geon. (M. Y. 345 ; Nelson 51.) 
Common in the Ohio and Mississippi rivers. Ohio R., Cairo ; 
111. R., Peoria. 
