x CONTENTS 



CHAPTER XXL THE FOOD OF ANIMALS OMNIVOROUS BIRDS 

 AND PRIMITIVE VERTEBRATES 



Page 



BIRDS (Aves): Crows, Starlings; Geese, Ducks, and Swans; Game-Birds Quail, 

 Partridge, Pheasant, Peacock, Red Jungle- Fowl, Guinea- Fowl, Turkey, Caper- 

 cailzie, Grouse; Rails Land-Rail or Corncrake, Moor-Hen, and Coot; 

 Cranes, Trumpeters, and Bustards. Running Birds African Ostrich, American 

 Ostriches, Emeu - - - 235 



PRIMITIVE VERTEBRATES (Protochordata) Sand and Mud Swallowing, Ciliary 

 Currents. Lancelets. Sea-Squirts or Ascidians. Worm-like Protochordates 

 Acorn-headed Worm - 243 



CHAPTER XXII. THE FOOD OF ANIMALS OMNIVOROUS 

 MOLLUSCS, INSECTS, AND CRUSTACEANS 



MOLLUSCS (Mollusca) : Snails and Slugs (Gastropoda) Grey Field-Slug, Black 

 Slug. Tusk-Shells (Scaphopoda). Bivalve Molluscs (Lamellibranchia) Fresh- 

 water Mussels, Cyclas, Sand-Gapers 247 



INSECTS (Insecta): Straight-winged Insects (Orthoptera) Cockroaches, Earwigs. 

 Membrane-winged Insects (Hymenoptera) Social Wasps, Bees, and Ants. 

 Two-winged Flies (Diptera) House- Fly. Scale-winged Insects (Lepidoptera) 

 Omnivorous Caterpillars - - - 250 



CRUSTACEANS (Crustacea) : Higher Crustacea (Malacostraca) Crayfish, West 

 Indian Fresh -water Prawn; Lower Crustacea (Entomostraca) Barnacles, 

 Copepods, Mussel-Shrimps, Leaf-footed Crustacea 253 



