362 H. HONDA. 



EXPLANATION OF PLATES. 



All of the drawings were made with the aid of camera lucida. Figs, i 

 to 15 were drawn with a Leitz 1/16 oil immersion objective and a Zeiss com- 

 pensating ocular 18. Figs. 16 to 37. except Fig. 33, were drawn with a Leitz 

 1/16 oil immersion objective and a Leitz ocular 5. Fig. 33 was drawn with 

 a Leitz 1/16 oil immersion and a Leitz ocular 4. Fig. 38 was drawn with a 

 Leitz 1/16 oil immersion objective and a Leitz ocular 3. All figures from 

 Stonwphis yanois. 



PLATE I. 



FIGS, i AND 2. Primary spermatocytes, prophase. 

 FIGS. 3, 4, 5 AND 6. Primary spermatocytes, metaphase. 

 FIG. 7. Primary spermatocyte, anaphase. 

 FIGS. 8 AND 9. Primary spermatocytes, telophase. 



