vi TABLE OF CONTENTS. 



CHAPTER VIII. 



Lucernarida Hidden-eyed Medusae Development of Lucernarida Bhizostomidae Grap- 

 tolitidae, ' . Pages 78-83 



CHAPTER IX. 



General characters of the Actinozoa Zoantharia Anatomy of a Sea- Anemone Zoantharia 

 Sclerodermata Scleroderinic and Sclerobasic Corals Coral-reefs Zoantharia Sclero- 

 basica Alcyonaria Gorgonidae Red Coral Rugose Corals Ctenophora Anatomy of 

 Pleurobrachia Tabular view of the divisions of the Ccelenterata, . . . p. 84-94 



CHAPTER X. 



General characters of the Annuloida General characters of the Echinodermata Divisions 

 of the Echinodermata Echinoidea Anatomy of Echinus Asteroidea Ophiuroidea 

 Crinoidea Cystoidea and Blastoidea Holothuroidea, p. 95-10T 



CHAPTER XI. 



General characters of the Scolecida Divisions of the Scolecida Tseniada Development of 

 a Tape-worm Cystic worms Trematoda Turbellaria Acanthocephala Gordiacea 

 Nematoda Rotifera Tabular view of the divisions of the Annuloida, . p. 108-117 



CHAPTER XII. 



General characters of the Annulosa Characters of the Anarthropoda Gephyrea Annelida 

 Divisions of the Annelida Hirudinea Oligochaeta Tubicola Errantia, p. 118-125 



CHAPTER XIII. 



General characters of the Arthropoda Divisions of the Arthropoda, . . . p. 12C, 127 



CHAPTER XIV. 



General characters of the Crustacea Decapoda Macrura Anomura Brachyura Isopoda 

 Merostomata Trilobita Cladocera, Copepoda, and Ostracoda Cirripedia Appendix 

 of the remaining orders of Crustaceans, ........ p. 128-138 



CHAPTER XV. 



General characters of the Arachnida Podosomata Acarina Pedipalpi Araneida, 



p. 189-143 



CHAPTER XVI. 



General characters of the Myriapoda Centipedes Millipedes . . . . p. 144, 145 



CHAPTER XVII. 



General characters and anatomy of Insects Metamorphoses of Insects, . . p. 146-152 



CHAPTER XVIII. 



Orders of Insects Anoplura Mallophaga Thysanura Hemiptera Orthoptera ^"europ- 

 tera Aphaniptera Diptera Lepidoptera Hymenoptera Strepsiptera Coleoptera 

 Tabular view of the divisions of the sub-kingdom Annulosa, . . . p. 153-163 



