CATALOGUE OF VERTEBRATES. 729 



PERCINA, Hald. 



(Perca. Scisena, &c.) 



P. caprodes, Raf. (Etheostoma, Pileoma semifasciatum, carbonaria, &c.) 

 Banded Darter. Log Perch. Rockfish. Hogfish. 



Body compressed, with long, pointed head, depressed above ; 

 cheeks, opercles and neck scaly ; chest naked ; fins low ; color 

 yellowish green, with about fifteen long cross bands on sides, 

 alternating with short ones ; fins barred. Dorsal rays, XV 

 15; anal rays, II 9; lateral-line scales, 92; length, 6 to 8 

 inches. Mouth overlapped by a pig- like snout. 



" This species I have only met with in the Delaware, and there 

 it is a by-no-means-abundant species. It appears to move about 

 more than the other species, sustaining itself for a greater length 

 of time in the water." 



ETHEOSTOMA, Raf. 



(Catonotus, Ag.) 



E. flabellare, Raf. (humeralis, fasciatus.) Fan-tailed Darter. 



Head naked ; lateral line short and nearly straight ; spinous 

 dorsal low, ending in fleshy knobs in males ; color olivaceous, 

 dusky above, with obscure bars ; scales with brown spot forming 

 obscure lines ; head narrow ; mouth oblique ; fins barred. Dorsal 

 rays, VIII 12 ; length, 2^ inches. Western New York and 

 southward. Possibly extra-limital to New Jersey. 



PCECILIOHTHYS, Ag. 



(Oligocephalus. Boleichthys. Aplesion. Alvarius. Astatichthys. 



Hololepis, &c.) 



P. cceruleus, Stor. (variatus, Jord.) Blue Darter. Rainbow Darter. 

 Soldier-fish. 



Body robust ; back elevated ; head large, compressed ; neck, 

 cheeks and breast usually naked ; opercles scaly ; fins large, dor- 

 sals close together ; males olivaceous, tessellated and blotched ; 

 sides with twelve indigo-blue bars, separated by orange spaces ; 

 caudal and anal deep orange, edged with blue ; soft dorsal blue 

 at base ; spinous crimson ; ventrals and cheeks blue ; throat, &c., 

 orange ; females with little blue or red ; vertical fins barred, &c. 

 Dorsal rays, X 12; anal rays, II 7; scales, 45X8; 



