CONTENTS, 753 



Pn<;e. 

 A. Habits and distribution of invertebrate animals — Continued. 



General remarks 4r!0 



Articnlatess 4:50 



Molliisks 4:V2 



Radiates 4Xi 



List of species 434 



9. Animals swimming free in the water or floating at the surface 4'M> 



General remarks 4:^(i 



Articulates 4:?8 



Mollusks 440 



Radiates 447 



List of species 451 



10. Parasitic animals 45.^) 



Internal parasi tes 455 



External parasites 457 



List of species 459 



III. — Fauna of the brackish waters of estilaries, harbors, &c 4r>fl 



General remarks 460 



1. Animals inhabiting the sandy shores and bottoms 4()'2 



Articulates 4ri2 



Mollusks 4();] 



List of species 4C.4 



2. Animals inhabiting the muddy shores and bottoms 405 



General remarks 4ti5 



Articulates 4(3(5 



Mollusks 46S 



List of siiecies 470 



3. Animals inhabiting oyster-beds 472 



General remarks 472 



Articulates 47 (i 



Mollusks 475 



Radiates 47(5 



List of species 47 (i 



4. Animals inhabiting the eel-grass , 478 



General remarks 478 



Articulates 47'J 



Mollusks 47'J 



List of species 480 



5. Animals inhabiting piles of wharves, bridges, floating timbers, i&c. 481 



General remarks 4">1 



Articulates 482 



Mollusks 482 



Radiates 481 



List of species 482 



IV. — Fauna of the colder waters of the ocean shores and outer banks and 



channels 484 



General remarks 484 



1. Animals inhabiting the rocky shores 485 



General remarks 485 



Articulates 486 



Mollusks 485 



Radiates 487 



S. Mis. 61 48 



