CHAP, XX.] 
FISHES. 
425 
Family 3. — PERCIDAL (61 Genera, 476 Species.) 
" Marine or fresh-water carnivorous fishes, with oblong bodies 
covered with toothed scales.” 
Distribution. — Seas, rivers and lakes, of all regions. 
The genera which inhabit fresh-waters are the following : — 
Perea (3 sp.), inhabits the Nearctic and Palsearctic regions as 
far south as Ohio and Switzerland ; one species, the common 
perch, is British. Percichthys (5 sp.), Chili and Patagonia, with 
one species in Java; Paralabrax (2 sp.), California; Labrax 
(8 sp.), six species are marine, inhabiting the shores of Europe 
and North America, one being British, two species inhabit the 
rivers of the northern United States; Lates (2 sp.), Nile and 
large rivers of India and China ; Acerina (3 sp.), Europe, from 
England to Russia and Siberia ; Per carina (1 sp.), River Dniester ; 
Lucioperca (6 sp.), North America and Europe ; Pileoma (2 sp.). 
North America, Texas to Lake Erie ; Boleosoma (3 sp.), Texas to 
Lake Superior ; Aspro (2 sp.), Central Europe ; Huro (1 sp.), Lake 
Huron; Percilia , (1 sp.), Rio de Maypu in Chili; Centrarchus (10 
sp.), North America and Cuba ; Bryttus (8 sp.), South Carolina 
to Texas ; Pomotis (8 sp.), North America, Lake Erie to Texas. 
Of the exclusively marine genera a species of Polyprion 
and one of Serranus are British. The latter genus has nearly 
150 species spread over the globe, but is most abundant in the 
Tropics. Mesoprion is another extensive genus confined to the 
Tropics. Apogon abounds from the Red Sea to the Pacific, but 
has one species in the Mediterranean and one in the coast of 
Brazil. 
Family 4.— APHREDODERID^E. (1 Genus, 1 Species.) 
“Fresh- water fish, with oblong body covered with toothed 
scales, and wide cleft mouth.” 
Distribution. — Atlantic States of North America, 
