1913] Michael: Sagitfa califuniica from :^an Diego Region 10!) 



TABLE 6 



Correlation between LEXiiTH of Animal and Proportional Length 

 OF Ovary 



r = +0.8998 ±0.0092 



the ovary in S. calif omirn does not mature in individuals under 

 22 mm. in length. The taltle, however, tells us more than this. 

 Mere cursory examination reveals the following facts : 



1. In animals under 14 mm. the ovary is less than 5 per cent 

 in length. 



2. In animals 14 to 16 mm. the ovary is less than 15 per cent 

 in length, and in the majority it varies between 5 and 10 per cent. 



3. In the majority of animals 16 to 20 mm. the ovary varies 

 from 5 to 10 per cent in length. 



4. In the majority of those 20 to 22 mm. the ovary varies 

 from 10 to 15 per cent in length. 



5. In the majority of those 22 to 24 mm. the ovary varies 

 from 15 to 20 per cent in length. 



f). In the majority of those 24 to 2(i mm. the ovary varies 

 from 20 to 25 per cent in length. 



Again, the average proportional length of ovary, correspond- 

 ing to each group of animals differing by 2 mm. in length, as 

 calculated from table G and as obtained directly from tabh^ 1, 

 is as follows : 



