158 The Apodes, or Eel-like Fishes 
The Lipogenyide have a round, sucker-like mouth, with 
imperfect lower jaw, but are otherwise similar, Lipogenys 
gilli was dredged in the Gulf Stream. 
Aas ae , 4 
Fig. 118.—Notacanthus phasganorus Goode & Bean. Grand Banks. 
Dr. Boulenger has recently extended the group of Heteromz 
by the addition of the Dercetide, Halosauride (Lyopomi), and 
the Fierasferide. We can hardly suppose that all these forms 
are really allied to Notacanthus. 
