Abbreviations used in the table 



chrom. 

 div. 



parth. 

 post, 

 pre. 

 E 



Ri 



R 2 



r 



sex-chrom. 



js 



V 



*1 



V 2 

 v 



X 



Y 



$ 



(1) 

 (11) 

 (1) 

 (11) 



n chromosome 



=division 



—the largest J-shaped chromosome 



^ somatic cell 



— oogonium 



=parthenogenet ic 



=post-r eduction 



-p re-reduction 



= long rod-shaped chromosome 



=the longest rod— shaped chromosome 



=the second longest rod-shaoed chromosome 



^rod-shaped chromosome of medium size 



-sex-chromosome 



- spermatogonium 



-large V-shaped chromosome 



=the largest V-shaped chromosome 



=the second largest V-shaped chromosome 



-V-shaped chromosome of medium size 



=X-chromosome 



=Y-chromosome 



^ -primary spermatocyte 



= secondary spermatocyte 



- primary oocyte 



-secondary oocyte 



(xy) 



