1250 Bulletin //, United States National Museum. 



66. Anal fln angnlated, its median rays produced, the longest in adult 

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

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

 black lateral blotch. 

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

 throughout parallel with it; side with a black blotch, 

 which tisually 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, 

 i. 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 largo, 4J in head in adult; preovbital 

 5| in head. Head 2f in length; D. X, U; 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 2| in length ; second anal spine 

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

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

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

 nearly uniform ; size large. aya, 1640. 



kk. Teeth in vomer in 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, 2# 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; flns mostly brick- 

 red, especially the anal; a pearly streak below 

 eye. Head 2j; depth 2s; 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, 2J in head. Color red, dusky above ; a blue streak 

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

 depths; 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 fln low, its outline 



rounded. 



m. 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, 1§ in head ; teeth on vomer in an anchor- 

 shaped patch. Color olivaceous, no black lateral 

 blotch; lower Jaw included. Head 2J: depth 3; D. 

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

 synagris?) brachypterus, 1643. 



