PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 433 



Vol. VII, IVo. 28. \Va§hinsrtoGB, D. C. Sept. 26, 1 884. 



q. Scales above the lateral line arranged iu series wbicli 

 are not tlironglioiit parallel with the lateral line ; 

 side with a black blotch, Avhich usually disap- 

 pears with age ; anal fin bright red. 



r. Teeth on vomer iu a '^ -shaped jjatch, with a uie- 

 diau backward i^rolongation ; lingual teeth well 

 developed; snout rather pointed; maxillary 

 reaching front of eye, 2| in head ; scales rather 

 large ; about forty-eight pores in the lateral line ; 

 eight scales in an oblique series, from iirst dor- 

 sal spine to lateral line ; color rose-red, nearly 

 uniform ViVANUS, 15. 



rr. Teeth on vomer iu a /\-sha[)ed, without distinct 

 prolongation on the median line ; lingual teeth 

 very few or none ; snout rather pointed ; max- 

 illary scarcely reaching front of eye, 2^ in head ; 

 scales rather small ; about five pores in lateral 

 line ; ten scales iu an oblique series from first 

 dorsal si^ine to lateral line; color, greenish 

 above, rosy below ; a small but distinct black 

 lateral blotch ; young with oblique blue streaks 

 above ; fins mostly brick red, especially the anal ; 

 a j)early streak below eye Analis, 16. 



gg^. Scales above the lateral line arranged in series, 

 which are parallel throughout with the lateral 

 line ; no black lateral blotch ; scales rather large ; 

 five or six between first dorsal spine and lateral 

 line ; lateral line with forty-seven pores ; vomer- 

 ine teeth ina A-sbaped patch; lingual teetli well 

 developed ; maxillary reaching front of pupil, 2% 

 iu head ; color, red ; dusky above ; a blue streak 

 on suborbital; anal and ventral fins dusky. 



Colorado, 17. 

 Ih. Anal rays III, 11; body slender; snout short, pointed; mouth small; canines 



very small; teeth on tongue well developed; 

 vomerine patch of teeth f-shaped, with a short 

 backward prolongation; scales above lateral 

 line in very oblique series; pectoral fins short; 

 caudal deeply forked; anal spines very small; 

 color, dusky, each scale Avith a shining silvery 



spot IXERMIS, 20. 



aa. Dorsal spines 11; body elongate ; scales large, those above lateral line in about 



four series, which are fully parallel with the 

 lateral line; soft dorsal and anal low; vomer- 

 ine teeth in a A-shaped patch; lingual teeth 

 present ; gill-rakers few ; color, brown, with 

 distinct silvery stripes along the rows of scales; 

 young with silvery cross-bars ; lower fins dusky. 



Aratus, 21. 

 Proc. Nat. Mus. 84 28 



