SPAKOID FISHES OF AMERICA AND EUROPE. 467 



region in i'loiit of dorsal with black merti- 

 au line; other sliort black lines on head; 

 black spot at angle of preopercle pur- 

 pli,",h-silvery in spirits; fins yellow; pos- 

 terior teeth canine-like ; body rather deep ; 

 snout short; mouth not large, the maxil- 

 lary 2^ in head; anal high, its second 

 epine 2 in head. Head, 3; depth, 2f. 

 Scales, 6-50-11. D. xii, U; A. iii, 8. 



Flavolineatum, 44. 

 dd. Mouth small, its cleft less than ^ length of head; body rather elongate; 



second anal spine small ; buck and sides 

 with longitudinal yellow stripes; teeth 

 weak; gill-rakers rather few and small; 

 snout very short, 2J in head; frontal for- 

 amina separate and placed some distance 

 in front of the very low supraoccipital 

 crest; premaxillary spine A'ery short, 4^^ 

 in head. (Brachygenys Scudder. ) 

 0. Body elongate ; the back not elevated, the depth 3^ 

 to 3f in body ; eye very large, 3 in head ; 

 maxillary 3 to 3J in head, reaching little, 

 if anj-, past front of eye ; anal moderate, 

 its spines small, the second 2f in head ; 

 fins all yellow; the caudal dusky in 

 adult. Head, 3^; depth, 3f. Scales, 

 7-52-13. D. XII, 14; A. Ill, 9. 



Chrysargyreum, 45. 

 cv. Dorsal spines 13; anal lin low; preorbital low; gill-rakers in moderate or 



rather large numbers, 12 to 18 ou lower 

 part of arch; lower jaw not projecting; 

 mouth little oblique ; body comparatively 

 elongate, the depth 2| to 3^ in length: 

 body with longitudinal yellowish stripes ; 

 scales rather small ; frontal foramina long 

 divided slits in front of supraoccipital 

 crest; size small. (Bafh)jstotna Scudder.) 

 }y. Mouth large, the maxillary reaching middle of 

 eye, its length about half head; gill- 

 rakers rather short and few ; scales mod- 

 erate, 50 to 55 in the lateral line ; second 

 anal spine scarcely larger or longer than 

 third, 2| or more in head. 



q. Body oblong, the back moderately elevated, 

 the depth 2f to 3 in length. Head, 2^; 

 depth, 2{^. Scales, 8-51-13. D. xiii, 15; 

 A. Ill, 8 Rimator, 46. 



qq. Body subfnsiform, the back little elevated, 

 the depth 3i to 3^ in length. Head, 3; 

 depth, 3f. Scales, 8-51-13. D. xiii, 15; 

 A. HI, 8 Aurolineatum, 47. 



