446 



DISTRIBUTION IN SPACE AND TIME 



Fig 1301 — Group of Deep Sea Animals. In foreground — a Sea-Cucumber on left, and a Coral [LopJtoJtelia] on 

 right. At back — Venus' Flower-Basket [EtipUciella] on right, two Sea-Lilies [R JiizocTinus ^nA Petttacrinus) in centre, 

 and on left. In the middle — a Pelican Fish {SaccopJiaryiix pclecaitoidcs). 



The Stopper- Fisted Hermit-Crabs iyPylochclcs) of the Indian 

 Ocean and Caribbean Sea do not possess the twisted tails of 

 our common native species, which live in cast-off snail-shells, 

 nor is one of the pincers much larger than the other. These 

 particular hermits are in all respects symmetrical, in adaptation 



