548 



Order Pediculati: The Anglers 



brought to the surface. In their habits they probably do not 

 differ in any degree from their surface representative, Lophius. 



Fio. 498. Deep-sea Angler, Ceratias holbolli Kroyer. Greenland. 



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 

 simple, very small lamella at the extremity (Melanocetus john- 



Fio. 499. Caulophryne jordani Goode & Bean. Gulf Stream. Family Ceratiidce. 



son-ii, Melanocetus murrayi). In other forms sometimes a 

 second cephalic spine, sometimes a spine on the back of the 

 trunk, is preserved. The first cephalic spine always retains 

 the original function of a lure for other marine creatures, but 

 to render it more effective a special luminous organ is sometimes 



