Sio fishes. THORACIC, 32. Peroa. 
great fwiftncfs at a certain height in the water ; is tcnaci^’^j 
of life, but eagerly takes a bait ; feeds on aquatic infect® 
fmaller fifli ; ipawns in May and June, and is very 
it hss no real air-bladck-r, and from its integuments may ^ 
^ obtained a kind of glue ; flefh very delicate. ■, ■ 
Kyes laige, iris blueifh, edged within with yellow \ 
double, near the eyes, with 4 pores before them ; 
large ; ;awt nearly equal ; teeth fmall, in the jaws and oir ^ 
roof ; tongue lliort, fmooth ; aperture of the gills large ; , 
fal fins violet, the firft with fpinous ravs and a black * 
the end ; pectoral reddifn, the reft red ; tail a little forked' 
Dorf, 14, i6 : pect. 14 : vent. ‘ ; an. : c^ud. 17 rays. 
America- Red; fecond dorfal fin with 13 rays. 
nus. Inhabits brackifli waters of A’ortk America ; lower lipi 
gill-membrane and upper edge of the covers red. 
^orf. 9, J : pea. 15 : vent. I : an. ;1 : ca-ud. i8 rays. 
Luciopered Second dorfal fin with 23 rays. 
Inhabits deep clear waters of Europe and northern PtfrL 
grows to 4 feet long 5 is very voraciou.s, feeds on other m 
even of its own tribe; fpawns in May, and is extrcm^- 
piolific ; fleili tender and good. 
IJead'dblong, devoid of fcales and obtufe on the fore-part ; 0 .^ 
clouded, iris cheinut, pupil glaucous ; upper jam a 
longer ; teeth irncqual, about 40 ; cheeks tumid, varied , 
green and red ; back with obfolete mixed livid and led 
fides ^ filvery ; belly white ; pectoral fins ytllowifli, the j 
whitifli ; dorjal Ipotted with black; the rays fimple, 
the lecond loft ; of the other fins the rays are branch 
tail forked, 
Dorf. 14, 23: peB. tfi': vent. 6 : an. 14 : caud. 17—22 
Volgenfis. Green-gold ; fecond dorfal fin with 23 rays. 
Inhabits chieflv the t/olsn. nnrl 
T 1! . • “uiiai nn witn 23 rays, 
nhabits chiefly the p olga and neighbouring rivers ; is 
termediate fpecies between the river perch and the laft- 
Body with 6 tranlverfe ' interrupted black bands ; fcales f 
and rough ; tw filvery ; 2 larger ; teeth at the"^ tip ' 
lowjrjaw; dorfal fins with 5 bands, the rays ftroog ' 
caud, i5ray5' 
vent. 6 ; an. 
