504 



A. E. MILLER 



The fifth specimen, ilhistratecl by Text -fig. 11, is interesting 

 mainly from tlie fact, not shown in the drawing, that one of 

 the meridional furrows is markedly displaced outwards from 

 the region of tlie abapical pole. 



Text-fig. 9. 



Text-fig. 10. 



Apical view. 

 Text-fig. 11. 



Apical view. 

 Text-fig. 12. 



Apical view. 



Apical view. 



The last egg belonging to this period of development (Text- 

 fig. 12) illustrates very clearly the kind of irregularities in the 

 position of the furrows which do so much to obscure the 

 process of segmentation from now on. In the right half of the 

 figure the two furrows which would norniallv be vertical 



