PELAGIC ANIMAL LIFE 623 



captured so few individuals at greater depths that we may 

 safely assume that even these were caught during the 

 process of hauling in. A vertical haul at Station 63, from a 

 depth of 4500 to 1500 metres, yielded five individuals of A. 

 multispijia, but none of A. purpurea ; while another haul from 

 1350 to 450 metres gave us two A. multispina and thirty-three 

 A. pzirpurea. The larvae of the latter occur in the higher 

 layers of water, just as is the case with A. multispina. 



Acanthephyra A.M. E.dw. 

 lultispina { Coutiere \ purpurea A. M. Ed« 



Scale refers to length of Carapace. 

 Fig. 475. 



What has just been said illustrates the conditions on the 

 northern section from Newfoundland to Ireland, and if we 

 examine the material from the stations farthest south in the 

 Sargasso Sea, we are confronted with exactly the same difference 

 that we encountered in the case of the species of Cyciothone, 

 namely, that the same forms descend to greater depths in 

 the south than they do in the north ; the larger individuals 

 ot Acanthephyra purpitrea, for instance, occur at depths 



