CONTENTS. VOLUME II. 



Arachnicla Trachearia Mowers Acarides Mites Itch-Arachni- 

 dan Ticks.., P. 60 67 



CRUSTACEANS, OR CRABS. 



LESSON VI. 



Class of Crustacea Organization Moulting Circulation Respi- 

 rationDivision P. 6873 



LESSON VII. 



Crustaceans Order of Decapoda its Division. 

 Brachyura Crabs Land-crabs Habits. 

 Anomoura Soldier or Hermit-crabs. 

 Macroura Craw-fishes Lobsters Locustse Prawns. 

 Orders of Amphipoda and Isopoda Sea-louse Wood-louse King- 

 crab Entomostracans Trilobites. 

 Class of Cirrhopoda Anatifa Balanus P. 73 82 



ANNELIDANS, OR WORMS. 



LESSON VIII. 



Class of Annelida Organization Division Earth-worms. 



Family of Suctoria Leech. 



Order of Dorsibranchiata Eunice. 



Order of Tubicola Sabella ..P. 83 89 



(Fourth Branch of the Animal Kingdom ; Zoophytes, or Radiate dnimalt.) 



LESSON IX. 



Zoophytes Organization Division. 

 Class of Infusoria Rotatoria. 



Class of Entozoa Division Filiaria Ascarides Tsenia. 

 Class of Infusoria Polygastrica. 

 Class of Echinodermata Sea-stars. 

 Class of Acalepha Medusa. 



Class of Polypi Coral Coral-reefs Hydrse Sponges Geographi- 

 cal Distribution of the Animal Kingdom P. 90 1 10 



