Order Pediculati: The Anglers 



549 



developed in connection with the filaments with which its ex- 

 tremity is provided (Ceratias bispinosus, Oneirodes esckricktii) . 

 So far as known at present these complicated tentacles attain 

 to the highest degree of development in Himantolophus and 

 Mgaonichthys. 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 Ceratiidcs described, none 



FIG. 500. Sargassum-fish, Pterophryne tumida (Osbeck), Florid*. 

 Family Antennariidce. 



are common and all are rare catches of the deep-sea dredge. 

 Caulophryne jordani 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: Antennariidae. The frogfishes, Antennariida , 

 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 



