GILL] NOTEWORTHY EXTRA-EUROPEAN CYPRINIDS Bult) 
has indeed come into quite general use. In the Sacramento basin, 
other names, besides pike, according to Jordan and Evermann, 
are “ chub, pig-mouth, box-head, yellow-belly and chappaul.” 
A genus of the same general group and having the same form as 
the preceding is Pogonichthys, so named because, unlike all the 
Fic. 70.—Pogonichthys inequilobus. After Girard. 
preceding, it has little skinny tags or barbels at the hinder ends of 
the upper jaw bones (one on each side) ; another peculiar character, 
developed in the adults, is a want of symmetry in the forked tail-fin, 
the upper lobe being much larger than the lower; furthermore, the 
fulcral or basal caudal rays are unusually developed. The scales 
are rather large (about 65 in lateral line) and well imbricated. 
Only one species is now recognized. 
The split-tail is the name aptly given to the Pogonichthys macro- 
Jepidotus. Its ordinary length is about a foot, but some may attain 
Fic. 71.—Mylopharodon conocephalus. 
that of eighteen inches. According to Jordan (1883), it “is very 
‘common in the Sacramento, and is brought in considerable numbers 
to the San Francisco market.” 
