204 



PROCEEDINGS OF THE ACADEMY OF 



[Apr., 



Netuma thalassina (Riippell;. 



Two from Paclang, Sumatra. 

 Netuma aulometopon sp. nov. Fig. 1. 



Head 3f ; depth 5i; D. I, 7; A. vi, 13; P. I, 10; V. i, 6; head 

 width 1^ in its length; head depth at occiput If; snout 31; eye 5; 

 maxillary 3|; mouth width 2|; interorbital 3; antero-internasal 

 4; dorsal spine If; first branched anal ray 1|; least depth of caudal 

 peduncle 3f; pectoral spine 1^; ventral fin 2|. 



Body compressed, rather slender, deepest at dorsal origin, and 

 edges all convex. Caudal peduncle well compressed, least depth 

 about half its length. 



Fig. 1. — Netuma aulometopon Fowler. (Type.) 



Head convex above, flattened below, and upper profile slightly 

 convex from snout tip to dorsal origin. Snout wide, moderately 

 convex over surface and length about half its greatest width. Eye 

 ellipsoid, near upper profile and center near first | in head length. 

 Edges of eye mostly free, scarcely adipose-like. Mouth moderate, 

 broadly transverse, and upper jaw well protruded. Band of rather 

 coarse, simple, sharp-pointed teeth in each jaw, and bands similar. 

 Vomerine-palatine teeth similar to those on maxillary, and in con- 

 tinuous band concurrent with maxillary. Tongue wide, thick, 

 fleshy, depressed, not free. Maxillary barbel long, extends back 

 about far as tip of depressed pectoral. Outer mental barbel extends 

 slightly beyond origin of pectoral and inner f as long. Internasal 

 areas about equal. Nostrils together, frenum about midway in snout 

 length, and posterior nearly covered by broad cutaneous flap in front. 



