184 



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 Euphausia 

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



FIG. 16. Euj)hausia latifrons, from the surface of the sea. 



(After Sars.) 



FIG- 17. Bentheuphausia amblyops, from 1,000 fathoms. 



After Sars. 



Bentlieupliausia amblyops (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. 



