GENERAL DISCUSSION. 



$c 



15 



V20 



\ 



X 



13.7 19.7 20.7 21.7 Z2.7 23.7 24.7 25.7 267 27.7 Z8.7 Z9.7 JO.7 31.7 32.7 337 34.7 35.7 36.7 37.7 38.7 



Length in millimeters 

 FIG. 2. Frequency polygon and its fitted curve for variation in length of cephalothoraz. 



Js 25 



'1.6 I1.t 13.6 14.6 15.6 I6 17.6 16.6 196 2O.6 ZI.6 2Z.6 23.6 .6 25 26j6 ZT.6 ZS.6 23.6 3&6 3J.6 3Z 33.6 3*.6 35.6 



Length in millimeters 



FIG. 3. Frequency polygon and its fitted curve for variation in propodite of leg i. 



SO 



\ 



4.5 4.9 5.3 5.7 6.1 6.5 6.9 7.3 7.7 8.1 0.5 6.9 9.3 9.7 /O.I IO.S IO.9 I/.3 H.7 12.1 



Length in millimeters 



FIG. 4. Frequency polygon and its fitted curve for variation in carpopodite of leg I. 



