200 



Variation in "EujHiyiirKs Fiideauxi" 



J)iiigiam IV. correspoiuis to Diagiiini I. It represents the regression lines of 

 Mctistufinent Nu. 1 on ciirapace lengtli, the dotted line being that of the deep 

 water fuinales, the coutinuoiis line that of the shallow water females. 



It will be Seen that the relation these two lines bear to one another is very 

 nnuli the same as that between the corresponding lines of the males. The diagram 

 shows therefure that in the females as weil as the inales the same carapace length 

 is iussociated with a snialler value of Muasuremunt No. 1 in the deep water fornis 

 than in ihe shallow water fornis. 



DiAOBAM IV. Measurement No. 1. 



Compaiisün between Eegression Lines of Measurement No. 1 on Carapace between 

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



Shallow Water ??. 

 Mean Carapace Length 71222 mm. 

 Mean Measurement No. 1 7-4850 mm. 

 Kegression -999. r = -8i2S. 



Deep Water ??. 

 Mean Carapace Length 7'5405. 

 Mean Measurement No. 1 7 4000. 

 Regression •Oä.'jä. r = •841)0. 



Tables XVII. and XVIII. show the correlation between the chela length and 

 the carapace length in the deep and shallow watcr females, corresponding to 

 Tables XI. and XII. of the males. 



Deep water r = -8626 ± 0080, 

 Shallow water r = \S84.1 + -0063, 

 Diflference = 021.5 + OlOtJ. 



