CO 



CHAPTER I 



ARTHROPODA 



PAGE 



Insecta A WASP 1 



A BEETLE 5 



A GRASSHOPPER 7 



A CATERPILLAR 18 



Myriapoda A CENTIPED 20 



Crustacea A CRAYFISH OR A LOBSTER 22 



A CRAB 36 



A SOW-BUG 40 



AN AMPHIPOI> 42 



CAPRELLA 44 



LARVAL DECAPODS 45 



A COPEPOD 47 



DAPHNIA 50 



A NAUPLIUS LARVA 53 



CHAPTER II 



ANNELIDA 



Chaetopoda NEREIS 55 



AN EARTHWORM 61 



CHAPTER III 



PLATYHELMINTHES 



Turbellaria A TRICLAU PLANARIAX WORM 70 



Cestoda A TAPEWORM . 74 



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