741 
Kay to genera 
Pectorals present. 
b^. Dorsal origin close behind pectoral base or 
much nearer latter than vent, 
c^. End of snout below with teeth external to 
closed jaws. B^h jm ^us^ 
c • Teeth confined to jaws, not extending ex¬ 
ternally on under surface of snout, 
d^. Teeth in jaws in cardiiform bands. 
Echelu s. 
d • Teeth in jaws mostly biserial. 
Paramyrus. 
b • Dorsal origin midway between pectoral base 
and vent, or nearer latter; teeth in jaws 
variably biserial or triserial. 
a « No pectorals 
Myroptnjj^ 
Muraenichthys. 
