CHAPTER III. 
ON DISTRIBUTION. 
As regards the Geographical Distribution of Genera, 
we find, among fresh-water fishes, that the Genera 
are confined within much narrower limits than are 
the Families. 
To take a few instances. 
Genus Barbus. Temperate and tropical parts of 
the Old World— Europe, Asia, Africa, East Indian 
Archipelago. 
Genus Labeo. Tropical regions — Africa, and the 
East Indies, Java, Syria. 
Genus Discognathus. Mountain streams, Syria, 
Persia, India, Ceylon. 
Genus Crossochilus. East Indies, Java and Sumatra. 
Genus Sclerognathus. North America and North 
China. 
Genus Cgprinus. Temperate parts of Europe and 
Asia. 
c 2 
