1250 Bulletin //, United States National Museum. 



66. Anal fin angulated, its median rays produced, the longest in adult 

 at least half head; body rather robust; upper canines rather 

 long ; lower small. Color more or less red, the young with a 

 black lateral blotch. 



j. Scales above the lateral line arranged in series which are not 

 throughout parallel with it; side with a black blotch, 

 which usually disappears with age ; anal fin bright red. 

 k. Teeth on vomer in an anchor-shaped patch, with a median 

 backward prolongation ; lingual teeth well developed ; 

 snout rather pointed; maxillary reaching edge of 

 pupil, 2 in head ; caudal edged with black. 

 Z. Iris golden-yellow in life. Scales rather small, 

 9-52-10, about 50 pores in the lateral line; body 

 rather slender, the depth 2J in length; second 

 anal spine about 3 in head; gill rakers 9 below 

 angle; eye large, 4f in head in adult; preorbital 

 5| in head. Head 2f in length ; D. X, 14 ; A, III, 9. 

 Color bright rose-red, with golden streaks. 



VIVANUS, 1639. 



II. Iris rose-red. Scales rather large, 8-46-14 ; body 

 robust, the depth 2f in length; second anal spine 

 about 4 in head ; gill rakers about 8 below angle ; 

 eye moderate, 5 to 6 in head in adult ; preorbital 

 5. Head 2g ; D. X, 14 ; A. Ill, 9. Color rose-red, 

 nearly uniform ; size large. AYA, 1640. 



kk. Teeth in vomer in a A-shaped patch, without distinct 

 prolongation on the median line; lingual teeth very 

 few or none ; snout rather pointed ; maxillary reach- 

 ing edge of eye, 2f in head; scales rather small, 

 about 50 pores in lateral line. Color, greenish above, 

 rosy below; a small but distinct lateral blotch; young 

 with oblique blue streaks above; fins mostly brick- 

 red, especially the anal; a pearly streak below 

 eye. Head 2|; depth 2f ; D. X, 14; A, III, 8; scales 

 10-67-17. ANALIS, 1641. 



jj. Scales above the lateral line arranged in series which are 

 more or less distinctly parallel throughout with the lat- 

 eral line ; no black lateral blotch ; scales rather large, 5 or 6 

 between first dorsal spine and lateral line ; lateral line 

 with 47 pores; vomerine teeth in a A -shaped patch; lin- 

 gual teeth well developed ; maxillary reaching front of 

 pupil, 2| in head. Color red, dusky above ; a blue streak 

 on suborbital; anal and ventral fins dusky. Head 2|; 

 depth 3 ; D. X, 14 ; A. Ill, 7 ; scales 5-47-11. 



COLORADO. 1642. 



aa . Soft dorsal with 12 rays (rarely 13) ; body oblong, the back not greatly 

 elevated ; upper canines moderate, lower small or obsolete ; scales 

 above lateral line in very oblique series ; anal fin low, its outline 

 rounded, 

 ra. Mouth moderate ; maxillary 2| to 2| in head. 



n. Caudal not deeply forked; gill rakers rather few (8 or 9 be- 

 sides rudiments). 



o. Pectoral short, If in head ; teeth on vomer in an anchor- 

 shaped patch. Color olivaceous, no black lateral 

 blotch; lower jaw included. Head 2|; depth 3; D. 

 X, 12 ; A. Ill, 8 ; scales 8-51- X. (Hybrid, griseus + 

 synagris?) BRACHYPTEBUS, 1643. 



