348 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [6] 



jj. Pseudobranchise small ; air-bladder with a very complex struct- 

 ure, having mauy forkiug branches on 

 each side, these extending in a perito- 

 neal membrane which surrounds the 

 viscera ; no canine teeth ; dorsal rays 

 IX-I, 25 to 30 ; anal rays II, 8 to II, 11 ; 

 the spine small ; pectoral shortish ; 

 gill-rakers slender, not very long ; pre- 

 opercle with two or three stifl", slender 

 spinules near its angle ; top of head 

 very convex in all directions ; occipital 

 crest high, its edge dentate; caudal 

 finlanceolate. (Asiatic species.) Ver- 

 tebrae 11+ 18 Collichthys.* 



jjj. Psendobranchiae present ; teeth snbeqnal, all villiform, in nar- 

 row bands; soft dorsal long, of 30 to 

 35 rays ; anal fin rather long ; soft dor- 

 sal and anal scaly: lower jaw project- 

 ing; vertebras 10+14; gill-rakers long 

 and slender; air-bladder with two 



horns Nebris, 5. 



ii. Skull firm, not excessively cavernous, interorbital space not very 



broad ; preorbital not turgid. 

 1c. Teeth minute, equal, chiefly uniserial or partly biserial above ; 

 snout very short ; cleft of mouth very 

 oblique or even vertical, the lower jaw 



projecting Larimtjs, 6. 



lie. Teeth larger, more or less unequal, those in lower jaw mostly 

 biserial, those of the inner series 

 usually enlarged ; cleft of mouth more 

 or less oblique but not vertical. 

 /. Scales of the lateral line similar to the others, not con- 

 ' cealed by smaller ones ; anal fin in- 

 serted more or less posteriorly, its first 

 spine usually nearer caudal than ven- 

 trals, the tip of the last ray when de- 

 pressed extending beyond base of last 

 ray of dorsal; caudal peduncle rather 

 short; pseudobranchise well devel- 

 oped. 



m. Upper jaw with a single row of teeth, some of them en- 

 larged, forming long canines ; some 

 canines in lower jaw ; lower jaw pro- 

 jecting Odontoscion, 7. 



mm. Upper jaw with a narrow band of teeth, those of the 

 outer row more or less enlarged; no 



distinct canines Corvula, 8. 



II. Scales of the lateral line considerably enlarged, almost en- 

 tirely concealed by smaller ones ; anal 

 fin small, inserted well forward ; its 

 first spine usually as near ventrals as 



•* Collichthys Gunther— Hemiscicena Bleeker ; type Scicena lucida Gunther, not of Rich- 

 ardson. Our specimens from Swatow, China (Collichthys lucidus Rich.?) agree with 

 Bleeker's account of Hemiscicena lucida rather than with Giinther's. This genus is cer- 

 tainly very close to Scicenoides. 



