178 CARRIE I. WOOLSEY. 



Plate II. 

 I amaicana subguUata Walker. 



Spermatogonia] figuies from four individuals (Fig. 19 exception). The number 

 in each polar view is thirty-five. Chromosomes are paired and numbered according 

 to size, 18 being the accessory. 



Figs. 13-14. Spermatogonial figures from individual 416. Polar view, meta- 

 phase. 



Figs. 15-18. Polar view of spermatogonial metaphase figures from individual 

 No. 585. 



Fig. 79. Lateral view of first spermatocyte. Th^ full number of chromosomes 

 is not shown. 



Figs. 20-22. Polar view of spermatogonial metaphase figures from individual 

 No. 586. 



Figs. 23-26. Polar view of spermatogonial metaphase figures from individual 

 No. 587. 



