Contents 



PART IV: THE BIVALVES 



CHAPTER 



I 



II 



III 



IV 



V 



VI 



VII 



VIII 



IX 



X 



XI 



XII 



XIII 



XIV 



XV 



XVI 



XVII 



XVIII 



XIX 



XX 



XXI 



XXII 



XXIII 



XXIV 



XXV 



XXVI 



XXVII 



XXVIII 



XXIX 



CLASS PELECYPODA 



A Typical Bivalve Mollusk 



The Watering-pot Shells and Club Shells 



The Ship Worm 



The Piddocks .... 



The Razor Shells. Razor Clams 

 The Rock-borers. 



The Soft-shell clams. Sand Clams 

 The Basket Clams 



The Duck-bill Shells and Lantern Shell 

 The Surf Clams. Hen Clams 

 The Semeles 

 The Tellen Shells. Sunset Shells. Wedge Shells 

 The Rock-dwellers 

 The Venus Clams and Carpet Shells 

 The Cyrenas and Pea Shells 

 The Iceland Cyprina 

 The Cockles. Heart Shells 

 The Rock Oysters 

 The Furbelowed Clams 

 The Lucinas 



The Thick-shelled Hearts 

 The Astartes. 



The Pearly Fresh-water Mussels 

 The Three-angled Clams 

 The Nut Shells 

 The Ark Shells. Chest Shells 

 The Mussels and Rock-eaters 

 The Wing Shells, Pearl Oysters and Hammer 

 Oysters. ..... 



The Pen Shells. Sea Wings. Fin Shells 



305 

 310 



312 



315 

 3.8 



322 



324 



326 



327 

 332 

 336 



338 

 345 

 347 

 354 

 356 



357 

 361 



363 



366 



369 



370 



373 



379 

 381 



384 

 387 



393 



401 



XIV 



