32 



ASTACUS 



Remove all the appendages of one side from behind forwards, and pin them out on a sheet of paper. Sketch 

 as required below. 



3. Third ambulatory limb. It is divided into seven Joints of which the basal carries a gill (podobranch) . 



A 



4. Mandible : toothed edge ; two jointed palp ; basal end ; tendon of muscle. 



UUi 



