Order Pediculati: The Anglers 549 
developed in connection with the filaments with which its ex- 
tremity is provided (Ceratias bispinosus, Oneirodes eschrichtit). 
So far as known at present these complicated tentacles attain 
to the highest degree of development in Himantolophus and 
Aigeonichthys. In other species very peculiar dermal appen- 
dages are developed, either accompanying the spine on the back 
or replacing it. They may be paired or form a group of three, 
are pear-shaped, covered with common skin, and perforated at 
the top, a delicate tentacle sometimes issuing from the foramen.” 
Of the fifteen or twenty species of Ceratiide described, none 
$ 
Fic. 500.—Sargassum-fish, Pterophryne tumida (Osbeck), Florida. 
Family Antennarvide. 
are common and all are rare catches of the deep-sea dredge. 
Caulophryne jordanit is remarkable for its large fins and the 
luminous filaments, Linophryne lucifer for its large head, and 
Corynolophus reinhardti (Fig. 143, Vol. I) for its luminous fish- 
ing-bulb. 
The Frogfishes: Antennariide.—The frogfishes, Autennariide, 
belong to the tropical seas and rarely descend far below the sur- 
face. Most of them abound about sand-banks or coral reefs, 
especially along the shores of the East and West Indies, where 
they creep along the rocks like toads. Some are pelagic, drifting 
