EXPLANATION 



OF 



SOME OF THE TERMS 



USED IN THIS VOLUME. 



Abdomen. That part of animals which contains the entrails. 



Amphibious. Capable of living both on land and in water. 



Anal fin. That fin which is placed on the under part of fishes, 

 near the tail. 



Antenna. The parts resembling horns, which project from 

 the heads of insects. 



Aquatic. Living in water. 



Ash-coloured. Of the colour of ashes. 



Bivalve. Consisting of two valves, or divisons. 



Carnivorous. Feeding on flesh. 



Cere. The naked skin covering the base of the bill in some 

 kinds of birds. 



Cetaceous. Of the whale kind. 



Chrysalis. The state of an insect before its final change. 



Cinereous. Of the colour of ashes. 



Crustaceous. Covered with a bony crust, as crabs and lob- 

 sters. 



Dorsal. Placed on the back. 



Entomology. A description of insects. 



Ferruginous. Of the colour of iron, or rust. 



Gill-cover. The bony plate which covers the gills of fishes. 



Gills. The organs of breathing in fishes. 



Gregarious. Collecting or associating together. 



