The Channel Fishes 337 



an arrow-shaped patch on the vomer; a narrow band of 

 pterygoid teeth in the adult ; gill-rakers long and slender, 

 8 + 21. 



Ltitianus synagris. The Lane Snapper. Body oblong and com- 

 pressed, back arched and slightly elevated ; profile almost 

 straight; head 2|; depth 2|; eye 5 ; scales 8-60-15 ; D. X, 12; 

 A. Ill, 8; mouth moderate, maxillary reaching front of orbit; 

 interorbital space gently convex ; upper jaw with a narrow band 

 of villiform teeth, outside of which a single series of enlarged 

 ones ; lower jaw with villiform band in front only, the row of 

 larger teeth nearly equal in size, none of them canines ; vomer 

 and tongue with each a single patch ; preopercle finely serrate, 

 with coarser teeth at angle ; gill-rakers rather long, 5 -|- 9 ; 4 

 small canines in front of upper jaw. 



Ltitianus aya. The Red Snapper. Body rather deep, moderately 

 compressed, the back well elevated, profile steep ; head 2f ; 

 depth 2 1 ; eye 5 J ; scales 8-60-15 i mouth rather large, maxillary 

 reaching front of orbit ; snout rather pointed ; interorbital space 

 strongly convex ; upper jaw with a narrow band of villiform 

 teeth, and a row of small teeth outside ; lower jaw with a single 

 row of small teeth, some of which are almost caninelike ; within 

 these is a very narrow band of villiform teeth in front of jaw 

 only ; tongue with a broad oval patch of teeth, in front of which 

 a small, irregular patch ; vomer with a broad, arrow-shaped 

 patch ; preopercle with serrated edge above, lower border den- 

 tate ; gill-rakers moderate, 8 on lower arch ; 4 canines in front 

 of upper jaw. 



Ljitianus jocu. The Dog Snapper. Body comparatively deep and 

 compressed ; the back elevated and profile straight ; head i\ ; 

 depth 2j; eye4|; scales 8-56-15 ; D. X, 14; A. Ill, 8 ; mouth 

 rather large, jaws subequal, maxillary reaching front of orbit; 

 upper jaw with a narrow band of villiform teeth, a single series 

 of larger ones, and 4 canines in front, 2 of them very large ; lower 

 jaw with a narrow, villiform band in front only, and a series of 

 larger teeth outside, some almost caninelike ; tongue with a 

 single patch of teeth ; an arrow-shaped patch on vomer ; pre- 

 opercle finely serrate above, coarser teeth at angle ; gill-rakers 

 short and thick, about 9 on lower arch, 

 z 



