286 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Analysis of species of Hcemulon — Continued. 



nn. Back and sides with continuous yellow stripes, which 

 are horizontal and do not everywhere follow 

 the direction of the rows of scales ; ground 

 color bluish gray ; back with a well-defined 

 blackish area from base of dorsal to base of 

 caudal, this color covering most of soft dorsal 

 and caudal fins; body rather elongate, the 

 depth 3 in length ; snout moderate ; longest 

 anal ra^ys when depressed not extending be- 

 yond tip of last ray ; second anal spine 2f 

 in head Melanurum, 10. 



nnn. Back and sides of head and body with continuous 

 blue stripes, horizontal, and not everywhere 

 following the rows of scales ; ground color 

 bright yellow ; fins yellow, the caudal dusky 

 at base ; snout moderate ; teeth very strong, 

 the anterior canine-like ; longest soft rays 

 of anal reaching beyond tip of last ray; 

 second anal spine 2J in head ; depth 2f in 

 length SciuRUS, 11. 



ff. Scales above lateral line anteriorly much larger than the other scales ; 



sides of head with bright blue stripes, which 

 extend for a short distance only on body; 

 body without distinct markings ; mouth very 

 large, its cleft rather more than half bead (in 

 adult) ; anterior profile somewhat concave, 

 the snout sharp, projecting; anal rather high, 

 its second spine 2^ in head.. .Plumieri, 12. 



ee. Scales below lateral line anteriorly much enlarged ; head, back, and 



sides with continuous bright yellow stripes, 

 those below following the direction of the 

 scales, and therefore extremely undulating 

 for the most part ; fins yellow ; posterior 

 teeth canine-like ; body rather deep ; snout 

 short ; mouth not large, the maxillary 2\ in 

 head ; anal high, its second spine 2 in head. 



Flavolineatum, 13. 



dd. Mouth small, its cleft less than one-third length of head; body rather 



elongate ; second anal spine small ; back and 

 sides with longitudinal yellow stripes ; dor- 

 sal spines 12 ; teeth weak ; gill-rakers rather 

 few and small (Brachygenys). 



0. (Body moderately elongate, the depth more than 

 length of head, about 2f in body; snout 

 shorter than eye, which is 3 in head, max- 

 illary scarcely reaching front of eye ; longest 

 dorsal spine half height of body; anal rather 

 high, its second and third spines subequal; 

 dorsal and caudal fins blackish; other fins 

 yellowish) Chrysargyreum, 14. 



