WONDERS OF THE DEEP 51 



with prehensile and tactile organs. Some fishes are 

 blind, while others are endowed with very large eyes. 



Phosphorescent light plays a most important part 

 in the deep sea, and is correlated with the prevailing 

 red and brown colours of deep-sea organisms. Phos- 

 phorescent organs appear sometimes to act as a bull's- 

 eye lantern to enable particles of food to be picked up, 

 and at other times as a lure or a warning. All 

 these peculiar adaptations indicate that the struggle 

 for life may not be much less severe in the deep 

 sea than it is in the shallower waters of the ocean. 



Let us now proceed to study in detail some of the 

 wondrous and peculiar creatures observed by the 

 Williamson Submarine Expedition. Certain of these 

 creatures have now been seen and photographed in 

 their native haunts for the first time. Over a hundred 

 little-known fish were photographed, and these have 

 aroused the keenest interest in scientific and photo- 

 graphic circles. Mr. Charles Townsend, the curator 

 of the Aquarium in New York, has spent many hours 

 over the photographs taken by the Williamson 

 brothers, and has found one or two specimens which 

 have never been seen or photographed before. Included 

 among the strangest, the ugliest, and the most beauti- 

 ful fish, are the cow fish, moon fish, parrot fish, angel 

 fish, butterfly fish, fool fish, scorpion fish, jolt heads, 

 trigger fish, trunk fish, doctor fish, shark suckers, sea 

 horses, squirrel fish, bog fish, and a host of others. 



Of course, it will be altogether impossible to 

 describe within the compass of a book of this size 

 all the various animals that were seen and filmed ; we 



