234 



GENERAL BIOLOGY 



Table of Malacostracan Appendages 



Bracket together the segments that are consolidated upon the dorsal side. 

 When different in the two sexes divide the space with a diagonal line and write 

 characters of male and female in separately. 



the base of a hind leg of a living specimen until it dis- 

 solves a little, and watching for the colored water to appear 

 at the front of the animal when expelled from the gill cham- 

 ber. The passageway through the gill chamber from the 

 rear and outward at the front may be looked up later in a 

 dead specimen. 



Examine gill-covers and gills of Asellus in action by 

 turning a living specimen over on its back and watching 

 them under a lens. Note their texture and form, and 



