208 



Variation in " Eupagunis Pn'deauxi" 



Diagrani V. shows the regression lines of tlie right chela length on the carapace 

 Icngth f(ir ileep and shallow wator fenialcs ; it correspoiids to Dia<,'rani II. The two 

 lines boar much tlie -saine r.latioii to oiic another as in that diagrani. And in the 

 saine way as in Diagrani II. the regression lines nin closer together than in Dia- 

 gram I. thiis those of Diagrani V. rim closer together than tho.se in Diagram IV., 



DiAi.HAM V. Length of liight Chela. 

 8.15 9.45 10.46 U.45 12.45 13.45 14,45 15.45 16.45 17.45 18^45 19.45 



Comparison between Regression Linm of Kight Chela Length on Carapace 

 Leugth of Shallow Water ?? (BB) and Deep Water ?? (DD). 



Shallow Water r?. 

 Mean Carapace Length 7-1222 mm. 

 Mean Chela Length 13-973.5 mm. 

 Regression -9.329. r=-8841. 



Deep Water ??. 

 Mean Carapace Length 1-7A0^> mm. 

 Mean Chela Length 141ll."i mm. 

 Regression -9013. r=-862fi. 



showing that these points in relation to the chela and carajiace for the deep and 

 shallow water forms which are illustrated by these diagrani.s are much the same 

 in the niales as they are in the females. Namely that the same carapace length 

 is associated with a smaller value for Measurement No. 1 in the deep water forms 

 than in the shallow water forms, also with a smaller value of Measurement No. 2, 



