1644 Bulletin ^y , United States A^ational I\hiscicm. 



cc. Head without longitudinal bands; posterior canines 2 to 4. 



/. Caudal truncate ; 2 series of scales on cheeks, and 2 scales on lower 

 preopercular limb; canines 2 or 3 on each side. Color uniform 

 violet purple; vertical flns very dark. aracanga, 2060. 



//. Caudal fin lunate, the outer rays more or less produced ; cheeks with 

 2J or 3 rows of scales ; posterior canines 3 or 4 ; color (dried skin) 

 plain brownish, the caudal in 1 specimen darker, or paler mesially, 

 its border and angles dark. trispinosus, 2061. 



bb. Cheeks with 4 rows of scales ; angles o f caudal more or less salient. 



g. Color dusky olivaceous, some scales witli a rosy blotch at base; dorsal 

 edged with dnsky ; caudal dark, pale .it base, and with pale shades, its 

 angles little produced ; opercle with blue blotches ; canines 3 ; 4 rows 

 of scales on cheek; snout rather acute ; 7 scales before dorsal. 



CUZAMIL^;, 2062. 

 g<j. Color dark sky blue; jaws with bright colors; flns chiefly blue, darker 

 on pectoral and front of caudal; middle of dorsal reddish, with blue 

 spots ; a red band near the edge of the caudal, 1 on the base of the 

 anal and 1 near the upper edge of the pectorals ; ventrals mostly red, 

 their external border blue; caudal with very salient angles; upper 

 jaw with red and blue edgings; snout moderate; 2 (rarely 3) lateral 

 canines in upper jaw. Scales brown edged; eye with blue spots 

 above and behind; a green band from the angle of tlie mouth, bor- 

 dered above and below by red. Teeth quite small. vetula, 2063. 

 ggg. Color brown, with 2 brown lateral bands. gnathodus, 2064. 

 CaLLIODON (xaAAis beauty ; 66ovs, tooth) : 

 aa. Upper jaw without canines; 2J series of scales on cheek. 



h. Third (partial) row of scales of the cheek of 3 or 4 scales % those of the upper 

 row little larger than those of the second row *. 

 i. Caudal slightly rounded, its outer rays not produced. 



j. Sides of body with 2 broad dark longitudinal shades; sides of belly 

 each with 3 sharply defined lines, each on a row of scales, these 

 stripes running from the breast to beyond front of veuti'als (these 

 lines usually becoming faint or even obsolete in old individuals). 

 k. Stripes on side of breast, if present, whitish. Color darkreddish 

 brown above, paler below ; back dark ; sides with 2 dark par- 

 allel stripes of the color of the back, separated by paler inter- 

 spaces, the upper one extending backward from eye; snout 

 above bluish brown: a iinirmv whitish streak running from 

 bead along the miildlf line "I I" 11 y ; a faint dark spot on base 

 of pectoral ; caudal ]ial( diangi' red, the outer rays somewhat 

 barred with brown ; dorsal orange, edged with bluish ; other 

 tins nearly plain. CROICENSIS, 2065. 



kk. Stripes on side of breast, if present, inky blue. Color bright 

 green, olivaceous above, paler below, the lower lialf of the 

 body becoming posteriorly more and more yellow, and on the 

 lower half of the caudal peduncle bright light yellow, this 

 color being brightest above front of anal ; longitudinal shades 

 on sides of body bright crimson, separated on the head by a 

 band of green; no spot on base of pectoral; caudal fin green, 

 its lower half yellow ; dorsal, anal, and pectorals green, at 

 least at base; ventrals yellow. evermanni, 2066. 



jj. Sides of body without distinct, broad, darker stripes. Color brown; 

 no bands or lines upon body or head ; dorsal spotted with violet 

 and edged above and below with yellow, like the catidal; caudal 

 without spots ; yellow line near the edge, and another along the 

 base of the dorsal. flavomarginatus, 2067. 



''These t>¥^0 characters not verifled in iscarux jlavomarginatus nor in >V. acutus. 



