CONTENTS. V 



CHAPTER XIX. 



PAGE 



PEDIGEEE AND HISTORY OF THE ANIMAL KINGDOM. 



II. MoLLUscA, Star-Pishes, and Articulated Animals. 



Tribe of Molluscs. — Four Classes of Molluscs : Lamp-shells (Spirobran- 

 chia); Mussels (LameUiUranchia) ; Snails (Cochlides) ; Cuttle-fish 

 (Cephalopoda). — Tribe of Star-fishes, or Echinoderma. — Their Deri- 

 vation from Einged Worms (Mailed Worms, or Phracthelminthes). — 

 The Alternation of Generation in the Echinoderma. — Four Classes 

 of Star-fish: Sea-stars (Asteridea); Sea-lilies (Crinoidea); Sea- 

 urchins (Echinidea); Sea-cucumbers (Holothuridea).— Tribe of 

 Articulated Animals, or Arthropoda.— Four Classes of Articulated 

 Animals: Branchiata, or Crustacea, breathing through gills; 

 Jointed Crabs; Mailed Crabs; Articulata Tracheata, breathing 

 through Air Tubes. — Spiders (Long Spiders, Round Spiders). — 

 Myriopods. — Insects. — Chewing and Sucking Insects. — Pedigree 

 and History of the Eight Orders of Insects 154 



CHAPTER XX. 



PEDIGREE AND HISTORY OF THE ANIMAL KINGDOM. 



III. Vertebrate Animals. 



The Records of the Creation of Vertebrate Animals (Comparative 

 Anatomy, Embryology, and Palaeontology). — The Natural System of 

 Vertebrate Animals. — The Four Classes of Vertebrate Animals, 

 according to Linnseus and Lamarck. — Their Increase to Nine 

 Classes. — Main Class of the Tube-hearted, or Skull-less Animals (the 

 Lancelet). — Blood Relationship between the Skull-less Fish and the 

 Tunicates. — Agreement in the Embryological Development of Am- 

 phioxus and Ascidise. — Origin of the Vertebrate Tribe out of the 

 Worm Tribe. — Main Class of Single-nostriled, or Round-mouthed 

 Animals (Hag and Lampreys). — Main Class of Anamnionate Ani- 

 mals, devoid of Amnion. — Fishes (Primseval Fish, Cartilaginous 

 Fish, Osseous Fish). — Mud-fish, or Dipneusta.— Sea Dragons, or 

 Halisauria. — Frogs and Salamanders, or Amphibia (Mailed 

 Amphibia, Naked Amphibia). — Main Class of Amnionate Animals, 

 or Amniota. — Reptiles (Primary Reptiles, Lizards, Serpents, Croco- 

 diles, Tortoises, Flying Reptiles, Dragons, Beaked Reptiles). — Birds 

 (Feather-tailed, Fan-tailed, Bush-tailed.) 192 



