750 Order Pediculati: The Anglers 
The genus Lophius of northern range has a vertebral col- 
umn of about thirty vertebree. Lophius litulon occurs in Japan. 
In the North Pacific is found Lophiomus, similar in appearance 
but smaller in size, ranging southward to the equator, a 
southern fish having but eighteen vertebrae. Lophiomus setigerus 
is the common anko of Japan, and other species are recorded 
from Hawaii and the Galapagos. 
The Sea-devils: Ceratiide.—The sea-devils, or Ceratiid@, are 
degenerate anglers of various forms, found in the depths of the 
arctic seas. The body is compressed, the mouth vertical; the 
substance is very soft, and the color uniform black. Dr. Gunther 
thus speaks of them: 
“The bathybial sea-devils are degraded forms of Lophius; 
they descend to the greatest depths of the ocean. Their bones 
Fic. 664 —Cryptopsaras couesi Gill. Gulf Stream. 
are of an extremely light and thin texture, and frequently other 
parts of their organization, their integuments, muscles, and 
intestines, are equally loose in texture when the specimens are 
brought to the surface. In their habits they probably do not 
differ in any degree from their surface representative, Lophius. 
The number of the dorsal spines is always reduced, and at the 
end of the series of these species only one spine remains, with a 
