88 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



ANALYSIS OF SPECIES 



a\ Raizeeo. Scales above lateral line entirely in series parallel with its course, 

 below in horizontal series ; fins without filaments. 

 6\ Black lateral blotch on lateral line. 

 &. Black lateral blotch below last dorsal spines and front of soft dorsal 



johnii. 



c'. Black lateral blotch below middle of soft dorsal fuscescens. 



6^ No black lateral blotch, but side with four rather ill-defined longitudinal 



dark-brown bauds, second from eye palmeri. 



al Glabrixutjanus, new subgenus. Scales above and below lateral line in hori- 

 zontal series ; several soft dorsal rays with prolonged filaments. 



nematophorus. 

 a^ Neomaenis. Scales above lateral line in oblique rows, at least for some 

 part posteriorly, below horizontal series. 



&. Predorsal scales not extending forward in interorbital space. 

 f. Front scales above lateral line parallel with its course, only pos- 

 terior rows oblique; predorsal scales extend opposite hind eye 

 edge ; greenish, each scale usually with dark spot ; cheek often 



with 1 or 2 blue horizontal lines below eye argentimaculatus. 



f. Scales above lateral line in oblique rows throughout, below in 

 horizontal rows. 

 g^. Body with transverse blackish bands ; caudal with large 

 rounded black blotch. 

 7i\ Eight transverse blackish longitudinal bands, but without 



longitudinal dark bands semicinctus. 



/l^ Five dusky longitudinal bands, crossed by dark transverse 



bands decussattis. 



(f. Body without dark transverse bands. 



i^. Body without dark longitudinal bands. 

 ;\ White or rosy blotch on back below spinous dorsal and 

 another below soft dorsal; upper and lower caudal 



edges dark bohar. 



f. No white blotch on back below each dorsal fin. 

 fc\ Head with numerous longitudinal blue lines; body 

 scales with silver-gray dots; pearly blotch, bordered 

 black on lateral line below front of soft dorsal. 



rivulatus. 

 fc*. No blue lines on head or pearly blotch on lateral line. 

 l^. No black lateral blotch on body. 

 »n\ No golden longitudinal streaks; dorsal bordered 



blackish ; caudal violaceous vaigiensis. 



m". Body with longitudinal golden or violet stripes. 

 w\ Dorsal uniform ; caudal with large black trans- 

 verse crescent lunulatus. 



w". Dorsal bordered blackish; caudal violaceous. 



flavipes. 

 ^^ Black lateral blotch on body. 



o\ Small black blotch below front of soft 



dorsal; infraorbital broad__monostigma. 



0*. Large black blotch, often ocellated, below 



front of soft dorsal ; infraorbital very 



narrow fulviflamma. 



*'. Body with 2 dark longitudinal bands, upper from eye to 

 caudal, lower from maxillary to anal lemniscatus. 



