18 



PROCEEDINGS OF THE ACADEMY OF 



fJan, 



shoulder to caudal base and possibly 4 more on latter; apparently 

 2 ? scales above 1.1. to spinous dorsal origin and 6? in vertical series 

 below to spinous anal origin; 3 predorsal scales; head width 2| in its 

 length; head depth at occiput 1^; mandible 1|; fourth dorsal spine 

 2; second anal spine 2; second dorsal ray If; fourth anal ray If; 

 least depth of caudal peduncle 2f ; caudal If; pectoral If; ventral 

 1^; snout 3| in head measured from upper jaw tip; eye 2f ; maxillary 

 21; interorbital 3|. 



Body well compressed, deep, back moderately elevated, deepest 

 at spinous dorsal origin, slight mecUan predorsal keel and other 



Fig. 8. — Amia melas sp. nov. 



edges rounded convexly. Caudal peduncle well compressed, least 

 depth about 1| its length. 



Head large, deep, well compressed, flattened sides nearly evenly 

 sloping above and below, and upper profile little more steep than 

 lower. Snout short, surface convex, though profile little concave, 

 and length f its width. Eye very large, rounded, impinging on upper 

 profile slightly, and center in head length near hind pupil edge. 

 Mouth large, oblique, and closed lower jaw slightly protruding. 

 Maxillary large, oblique, entirely along upper edge slipping below 

 narrow preorbital, and reaches to pupil center. Terminal maxillary 

 expansion 2| in eye, hind edge little emarginate. Preorbital width 



