636 Bulletin 47, United States National Museum. 



eee. Scales 33-10; dorsal rays 8 or 9; body with fine specks which are clustered 

 together on sides, forming irregular, scattered, round, blackish spots. 



JKNKINSI, 953. 

 dd. Anal rays 8 to 11. 



/. Scales rather large, about 33 to 35-10 ; depth about 4 in length ; anal rays 8 to 



11 ; head 3% to 3% in length. 



g. Dorsal rays 10 or 11*; back and sides dusted with fine dark points which are 

 gathered together forming 10 or 12 scattered, round, brown spots on 

 sides; fins with minute specks. PULVEREUS, 954. 



gg. Dorsal rays 7 to 9. 



h. Dorsal fin inserted over sixth ray of anal ; anal rays 11 ; body (in 

 female) nearly plain olivaceous ; fins plain or with a few black 



dots. ARLINGTONIUS, 955. 



hh. Dorsal inserted over first to third ray of anal (in the male). 



i. Body with many bronze or orange spots, arranged along the rows 

 of scales either regularly or irregularly ; females dull green- 

 ish ; young with greenish cross shades. 



j. Anal rays 10 or 11 ; teeth of outer series in upper jaw com- 

 paratively long and slender, longer than the other teeth ; 

 orange spots rather large and irregular in position. 



HENSHALLI, 956. 



jj. Anal rays 8 or 9 ; teeth in outer series scarcely enlarged, 

 scarcely larger than others in the band ; spots regularly 

 placed, somewhat as in Fundnlus catenates. 



RUBRIFRONS, 957. 



ii. Body with rather large pearly white spots scattered over the 



scales ; fins plain. SCARTF.S, 958. 



ff. Scales rather small, 39-13 ; body deep, the depth 3% in length ; dorsal and 



anal each with 10 or 11 rays ; coloration nearly plain. SCIADICUS, 959. 



cc. General coloration olivaceous, marked by distinct black crossbars, but without distinct 



black longitudinal band or rows of black streaks ; dorsal fin much smaller than 



anal and inserted behind it, its rays 8 to 10. 



k. Male with a large jet-black ocellus on the dorsal fin ; anal rays 10 ; dorsal 8 ; scales 

 35-11 ; depth 4% in length ; sides in both sexes with 10 to 12 black bars. 



LUCI.S;, 960. 

 kk. Male and female without black ocellus on the dorsal ; scales 32 to 36. 



I. Anal rather long, its rays 11 ; vertical fins dotted with brown ; pearly spots 

 sometimes present ; depth 3f in length ; scales 32-12. OHRYSOTUS, 961. 



//. Anal moderate, its rays 8 or 9 ; scales 34 to 36-10. 



w. Dark cross bands 15 or 16. Body rather stout, the depth about 4 in length; 

 interspaces on sides orange, with many dark points ; fins red. 



CINGULATUS, 962. 



mm. Dark cross bands about 12. Body slender, the depth about 4}^ in length ; 

 dorsal and anal with streaks of dark dots. (male of) NOTTII, 963. 



ccc. General coloration olivaceous, but crossed by many dark lengthwise streaks, each 

 formed of many black spots arranged in parallel lines along the rows of scales; 

 sides often with black crossbars also, especially in the male (in which the length- 

 wise streaks are sometimes obsolete) ; a black area below eye. Scales 35 to 40. 

 n. Body rather slender, the depth 4^ to 5 in length. 



o. Black spots on scales in the female confluent into about 6 narrow jet-black, 



rope-like stripes from head to tail, these sometimes alternating with fainter 



lines of dots ; cheeks bright orange in life, silvery in spirits. Males with 



the streaks obscure, the dark cross bands more distinct, about 12 in number. 



Scales 36 to 40. NOTTII, 963. 



oo. Black spots on scales distinct, not confluent into lines, the whole forming 



longitudinal series of disconnected dots ; cheeks orange. Scales 36. 



GUTTATTJS, 964. 



ooo. Black spots very small, sprinkled over upper surface, passing backward into 

 longitudinal streaks. HIEROGLYPHICUS, 965. 



