BULLETIN FLORIDA STATE MUSEUM


 SUBGENERIC DIAGNOSIS AND SPECIFIC
 RELATIONSHIPS

 The subgenus Luxilus is characterized by the following diagnostic
features: anal rays modally 9 (10 in specimens of N. zonistius from
southern part of range); pectoral rays 14 to 17; lateral-line scales
usually 39 to 41; caudal peduncle scales usually 14 to 16 (7-2-5 to 7);
peritoneum black or heavily speckled with black; pharyngeal teeth
2,4-4,2; dorsal fin inserted directly above or slightly behind anterior
insertion of pelvic fin; anterior lateral-line scales and adjacent scales
taller than wide, notably so in some forms; dark pigmentation present
on scale pockets along side of body in most species, resulting in the
appearance of black crescent-shaped vertical streaks; mouth large,
terminal and oblique; size relatively large; body form in most forms
more or less compressed.

 SPECIES SUBSPECIES
 N.cornutus


 N. albeolus


 N.chrysocephalus
 chrysocephalus
 N. chrysocephalus isolepis

 N. cerasinus

 N. zonatus


 N. pilsbryi



 N. coccogenis


 N. zonistius

 Figure 1. Hypothetical Phylogeny of the Subgenus Luxilus.


Vol. 8