170 THE ANIMAL KINGDOM. 



tores ? Name some of them, including those in which the 

 power of flying is the most developed, and those in which 

 it is the most limited. 



66. What are Reptiles, and how are they classed ? 



67. Describe the construction of the covering of Tortoises 

 and Turtles, and give some account of each. 



68. Give the natural history of Saurians. 



69. Describe the animals representing the different 

 families of Ophidians, i Explain the construction of their 

 spinal column. 



70. Sketch and describe (i) the poison-tangs of venom- 

 ous serpents, (2) the construction of their jaws. 



71. What is the precise meaning of amphibious ? De- 

 scribe a truly amphibious animal. 



72. Sketch and describe the transformation which takes 

 place in Batrachians. 



73. What is peculiar to the construction of Fishes ? 



74. How do fishes breathe, and why is their blood cold? 



75. Sketch the skeleton of a fish, and show the position 

 of the various fins. 



76. How are fishes classified (i) according to their 

 skeletons, and (2) according to their fins ? 



77. Name some of the fishes comprehended in each of 

 these groups. 



78. Describe the Sturgeon, and name the trade products 

 obtained from it. 



79. How does the Lamprey differ from the Eel ? 



80. What are the characteristics of the Articulata ? 



81. Describe (i) the Annelida, (2) the Myriapoda. 



82. What is meant by the term Insects ? Describe the 

 transformations of a Silkworm. 



83. Describe the Arachnida, and show how they differ 

 from Insects. 



84. What animals are comprised in the group Crustacea, 

 and what are fc heir leading characteristics ? 



