208 



PROCEEDINGS OF THE ACADEMY OF 



[March, 



Small herrings resembling Pellonula Gunther, but differing in the 

 absence of teeth. Some species of Pellonula are also credited with 

 having the dorsal inserted behind the ventral origin. Possibly Pomo- 

 lobus melanostomus Eigenmann is a member of this genus ? 



(Named for Dr. Constantine J. Hering, who collected fishes in 

 Surinam many years ago, for the Academy.) 



Heringia amazonica (Steindachner). 



Surinam 14 (Hering). 

 Ilisha narragansetae sp. nov. Fig. 1. 



Head 3J; depth 3; D. iv, 13, i; A. iv, 41, i; P. i, 15; V. i, 5; scales 

 about 44 in lateral series to caudal base (squamation damaged) + 5 

 (according to pockets) ; about 14 scales (squamation injured) between 

 dorsal and anal origins; predorsal scales 20 (according to pockets); 



-oSSffHS* 



Fig. 1. — Ilisha narragansetae Fowler. Type. 



head width 2f- its length; head depth at occiput 1^; mandible 2^; 

 length of dorsal base 3; least depth of caudal peduncle 3f ; pectoral 

 about If-; snout 4-f- in head measured from upper jaw tip; eye 3; 

 maxillary lf^; interorbital 6J. 



Body greatly compressed, thin, deepest at ventral origin, edges 

 slightly trenchant, abdominal edge trenchant with 25+7 serrae, 

 upper profile slightly convex and lower decidedly more so anteriorly, 

 posteriorly lower straight. Caudal peduncle compressed, length 

 trifle less than its least depth. 



Head compressed, sides not especially flattened, but approximated 

 below, upper profile little inclined, slightly concave, and convex lower 

 greatly inclined. Snout surface convex, broad as long. Eye large, 

 rounded, trifle before center in head. Apparently no adipose eyelid. 

 Maxillary greatly inclined, reaches beyond front pupil edge till about 



