272 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



a.^ Infraorbital with enlarged, distinct, backwardly directed spine below eye. 

 (f\ ScoLOPSis. Maxillary without external denticles. 

 e\ Some scales on flanks at least with basal black spot; white line 

 on back along bases of dorsals, 

 f *. Second white line from eye, another along and close below lateral 

 line and short third one from below eye to pectoral axil. 



ghanam. 

 f. Broad white diffuse band on body forms oblique white bar with 



black edges behind gill opening xenochrous. 



e^ No scales on flanks with basal black spots, 



g^. Each body scale with pearly or yellowish spot margaritifer. 



g'. Scales without spots. 



7i'. No white transverse band from occiput over opercle. 

 /\ Red, with blue white band from eye curving along lateral 



line; blue median band over both dorsals taeniopterus. 



i^ No blue white band along lateral line. 

 ;\ No yellow ring on postorbital. 



fc'. Light longitudinal bands all horizontal. 



v. White medial longitudinal band from eye to caudal; 



pale blue band aci'oss interorbital personatus. 



t. No white medial longitudinal band, narrow white line 

 on back along dorsal bases ; white band from max- 

 illary to eye and over postocular to i)ectoral axil. 



phaeops. 

 V. One to 3 white or yellowish parallel bands, variably 



connected behind by short pale bars cancellatus. 



fc^ Dark medial horizontal band present. 



m\ Dark band expanded medially, often broken as 2 



large black lateral blotches bimaculatus. 



?»^ Dark band from eye till above caudal base. 



monogramma. 

 k'\ Dark and light bands on body inclined posteriorly. 



ji\ Broad white medial longitudinal band, gently 

 inclined from eye to upper part of caudal 

 peduncle. 

 o\ Broad white band bordered above and below 



with equally wide blackish band longulus. 



o^ Body with 3 inclined pearly or yellowish bands, 

 first narrow from above eye to last dorsal 

 spines, second from eye to last dorsal rays 

 and expanded medially, third from lower eye 



edge to middle of side trilineatus. 



J^^ Broad white medial longitudinal band, well in- 

 clined, from eye to front of soft dorsal. 

 p\ Eye equal to snout or interorbital ; upper 



caudal lobe with filament frenatus. 



P". Eye greater than snout or interorbital ; up- 

 per caudal lobe without filament. 



bilineatus, 



}^. Yellow ring at preorbital temporalis. 



Til White transverse band from occiput over opercle; often 

 whitish medial band from gill opening till below front of 

 soft dorsal vosmeri. 



