1918.] 



NATURAL SCIENCES OF PHILADELPHIA. 



25 



Greatly resembles the preceding species, but differs at once in 

 coloration. Besides the presence of the third lateral line below, the 

 larger caudal spot and wider median lateral band anteriorly, there 

 are no dark bars on the opercle. 



(To Dr. William P. Wilson, of the Commercial Museums of 

 Philadelphia, to whom I am indebted for the opportunity to study 

 the present collection.) 



Amia radclifPei sp. nov. Fig. 11. 



Head 2|; depth 2|; D. VII-I, 9, i; A. II, 8, i; P. ii, 10; V. I, 5; 

 scales 23 in lateral line to caudal base and 4 more on latter; 2 scales 

 between spinous dorsal origin, and lateral line, and 6 scales in vertical 



Fig. 11. — Amia radcliffei sp. nov. 



series to spinous anal origin; 4 predorsal scales; head width 2 in its 

 length; head depth at occiput If; snout 3f; eye 3f; maxillary 2; 

 interorbital 5; third dorsal spine 2^; first dorsal ray If; second anal 

 spine 3|; second anal ray (damaged) 2f ; least depth of caudal pedun- 

 cle 2^; caudal (damaged) about 1|; pectoral 2; ventral 2. 



Body well compressed, moderately deep, back not elevated, 

 deepest at spinous dorsal origin, and edges rounded convexly, pre- 

 dorsal scarcely with median keel. Caudal peduncle well compressed, 

 least depth If its length. 



Head large, moderately long, compressed, flattened surfaces 

 slightly swollen below, profiles nearly straight and similarly inclined. 

 Snout moderate, surface convex, length about f of width. Eye 



