656 CONTRIBUTIONS TO NOETH AMEEICAN ICHTHYOLOGY IV. 



vv. Highest dorsal .spine little if auy more 

 than half the length of head. 

 y. Pale blotches on sides not form- 

 ing a conliniious lateral band; 

 occipital ridges moderate. 

 z. Pale markings flesh-color; dark 

 markings olivaceous. . carnatus. 

 zz. Pale markings yellow; dark 

 markings blackish, .chrysomelas. 

 yy. Pale blotches on sides, forming 

 a continuous lateral band; body 

 and fins profusely speckled with 

 pale; dark markings black; 

 pale markings yellow; occipital 



ridges very strong neiulosus. 



tt. Nuchal sj)iues i>resent, usually distinct from 

 occipital; cranial ridges very 

 short and high; olivaceous, 

 banded with black; head red 



below serrice})s. 



as. Cranial ridges with the surface broken, spi- 

 nous; frontal ridges elevated; 

 color bright red, with black 

 bands nigrocinctus. 



a. Species with very small scales (lat. 1. 90-100); the cranial ridges little developed j 

 the mouth very large, the lower jaw much projecting. (Sehasiodes.) 



lOOS. S. paiicispillis (Ayres) Gill.— 7?occaccio; Mcrou; Jack. 



Pale dull orange red, dark brown above, tlie sides somewbat vaguely 

 spotted; young olivaceous; fins nearly plain, lower reddisb, upper 

 dusky; tip of lower jaw dark. Body elongate, compressed, profile 

 straigbt from tbe protruding tip of the lower jaw to the front of the dor- 

 sal. Head large, long, and narrow, pointed. Mouth much larger than 

 in any other species, oblique, the broad maxillary reaching to beyond the 

 eye; its length If in head; lower jaw very strong, with a projecting 

 knob at tip, which protrudes farther than in any other species. Pre- 

 maxillary on the level of lower edge of pupil. Cranial ridges little de- 

 veloped, the preocular and occipital traceable and sometimes ending in 

 small spines. Interocular space broad, with two low ridges; top of 

 head scaled to tip of snout; maxillary and preorbital scaly; preorbital 

 with narrow neck and three small spines; suborbital stay moderate; 

 preopercular spines sharp and diverging, the third largest, the lower 

 often divided; opercular spines moderate. Gill-rakers slender, com- 

 pressed, not very long. Eye large, 4-6 in head, slightly more than iu- 

 terorbital width. Scales very small and rough, irregular; accessory 

 scales few. Dorsal spines low, rather slender, the fin deeply emar- 



