184 CARRIE I. WOOLSEY. 



Plate V. 

 Jamaicana subgultata Walker. 



Spermatocyte figures of No. 503. 



Figs. 44-46. First spermatocyte anaphase. The multiple chromosome is to 

 be seen in each figure. It has lost its rod mates, which have probably gone to the 

 opposite pole, and is now the size of the spermatogonial V. By comparing it with 

 the multiple before division as seen in Figs. 39-43, what has taken place, is more 

 readily seen. 



Figs. 47. First spermatocyte telophase showing the V at one pole and its rod 

 mates and the sex chromosome at the other. The latter is split longitudinally. 



Fig. 48. Telophase of a first spermatocyte division. 



Fig. 49. Telophase of first spermatocyte division containing the sex-chrcmo- 

 some and the multiple. 



Figs. 50-51. Telophase of the first spermatocyte or resting period of the second 

 spermatocyte. The sex-chromosome is split preparatory to the second spermato- 

 cyte division. 



Fig. 52. Second spermatocyte. Sex-chromosome divided. The V-chromo- 

 some is here divided and the arms are of the original size seen in the spermatogonial 

 figures. 



Fig. 53. Second spermatocyte. Sex-chromosome divided. 



