March, 1914. List of Fishes of Costa Rica — Meek. 123 



bars; light blue spots on body, soft dorsal, anal and caudal fins. 



altijrons. 

 ee. Lower lip not forming broad lateral folds. 



f. Caudal fin subtruncate or rounded; sides without well defined 

 lateral blotch. 



g. Anal spines 8 to 10; pectoral reaching past first anal spines; 

 dorsal XVII to XVIII, 8 to 10; anal VIII to X, 7 to 8; body with 

 about 7 dark bars; vertical fins without spots. spilunim. 



gg. Anal spines 4 to 7. 



h. Anal spines 6 to 7; teeth conical, and pointed at all ages. 



i. Spinous dorsal low, the middle ones about 4 in head; pectoral 

 not reaching front of anal; dorsal XVII to XVIII, 10 or 11 ; anal 

 VI to VII, 8 to 9; sides with 7 cross bars and a broken lateral 

 band; vertical fins with few pale spots. alfart. 



ii. Spinous dorsal higher, the middle spines about 3 in head; pectoral 

 reaching front of anal. 



j. Caudal peduncle without a large dark blotch; dorsal XVII to 

 XVIII, 10 to 11; anal VI to VII, 8 or 9; sides with 7 dark bars 

 and a broken lateral band; vertical fins with pale spots. 



lethrinus. 



jj. Caudal peduncle with a large dark blotch; dorsal XVI to XVII, 

 12 to 14; anal VI to VII, 9 to 10; depth 1.7 to 2.0. 



maculicauda. 



hh. Anal spines 4 to 5; teeth more or less compressed at base, the 

 tips pointed or truncate; pectorals not reaching anal. 



k. Dorsal rays 11 to 12; dorsal XVII to XVIII, 11 to 12; anal V, 

 8 to 9; sides with broad cross bars, none of the scales with black 

 spots; vertical fins with dark spots. underwoodi. 



kk. Dorsal rays 9 to 10; dorsal XVII to XVIII, 9 to 10; anal IV to 

 V, 6 to 7; sides with faint cross bars, some of the scales with 

 black spots forming broken lines along the rows of scales; no 

 spots on vertical fins. punctatum. 



ii. Caudal fin emarginate or slightly forked, sides with a well- 

 defined lateral blotch. 



I. Snout pointed, mouth terminal, the profile nearly straight; 

 pectoral reaching first anal spine; dorsal XVII, 10 or 11; anal 

 VII, 8 or 9. ro stratum. 



II. Snout rounded, mouth subinferior, profile convex; dorsal XIX 

 to XX, 10 to 11; anal VIII to IX, 7 to 8; pectorals not reaching 

 front of anal; a black spot on middle of the side below lateral 

 line; vertical fins with numerous white spots. spilotwm. 



