____ — ' '----' 



? 



EDIBLE CRAB. 



CHAPTER VI 



Lower Forms of Marine Life 



Of the many forms of invertebrate life inhabiting the northern 

 seas, none are more noteworthy than the curious sea-spiders, some of 



which live in the ocean-depths, 



while others are found within 



the tide-range, where they move 



about slowly, creeping or climb- 

 ing over plants and stones. Of 



the latter section of the group a 



not uncommon representative is 



the slender sea-spider {NympJton 



gracile). 



Crabs, Lobsters, The crabs, lob- 



Sbrimps.etc. s ters, shrimps, and 



their allies, constituting the 



Crustacea, abound in all seas. 



2QQ 



SLENDER SEA-SPIDER. 



