134 



THE FAUNA OF THE DEEP SEA 



are distinguished by being quite "blind or possessing 

 very much reduced or rudimentary eyes. 



If we compare, for example, the pelagic Euphansia 

 latifrons (fig. 16) with the nearly allied but abysmal 



Fig. 16. — Ei/phmtsia latifrons^ from the surface of the sea. 

 (After Sars.) 



Fig 17. — BentheujjJiavsia amhlyops, from 1,000 fathoms. 

 After tSars. 



Benthe2i/p]iausia amhhjoj^s (fig. 17), the difference in 

 this respect between a Schizopod living in the sun- 

 light and one living in the darkness of the deep-sea 

 is very apparent. 



