of the gebm cells of metazoa. 



235 



Kiss. 1(11-105. Nuclei of first spermatocytes, rest stage. 



Pig. 1GG. Nucleus of first spermatocyte, late prophase, showing all the chromatin elements. 

 Pigs. 107, 108. Pole views of monasters, first maturation mitosis. 

 Fig. 169, Lateral view of same stage, Ave of the chromosomes not shown. 

 Fig, 170, Lateral view of anaphase, first maturation mitosis. 



Pig. 171. Pole view of second spermatocyte, chromatin elements not definitely arranged in the equator of the 

 spindle. 



Leptopterna dolabmia, Figs. 172-176. 



Figs. 172-175. Nuclei of first spermatocytes, growth period. 

 Pig. 17C>. Pole view of monaster, second (?) maturation mitosis. 



Caloeoris rapidus, Figs. 177- 188. 



Fig. 177. Spermatogone monaster, pole view. 



Figs. 178-180. Nuclei of first spermatocytes, telaphase. 



Fig. 181. Oblique lateral view of the spindle before the chromosomes are arranged in the plane of the equator, first 



maturation mitosis. 

 Figs. 182-184. Oblique lateral views of monasters, first maturation mitosis. 

 Figs. 185, 180. Pole views of the same stage. 

 Figs. 187, 188. Pole views of monasters, second maturation mitosis. 



JPmcilooapsus linealus, Figs. ISO, 100. 



Pig. 189. Nucleus of first spermatocyte, early telaphase. 

 Fig, 190. Pole view of monaster, first maturation mitosis, 



Plate V. 



Pmeilocapsus goniphorus, Figs, loi-ios. 



Figs. 191-195. Nuclei of first spermatocytes', rest stage. 



Pigs. 190, 197. Pole views of monasters, first maturation mitosis. 



Fig, 198. Lateral view of the same stage. 



Phymata sp., Figs. 199-20S. 



Fig. 199. Spermatogonic nucleus, rest stage. 



Fig. 200. Spermatogonic monaster, pole view. 



Fig. 201. Nucleus of first spermatocyte, telaphase. 



Fig. 202. Pole view of monaster, first maturation mitosis. 



Fig, 208. Lateral view of same stage. 



Consent ferus, Figs. £04-206. 

 Figs. 201, 205. Nuclei of first spermatocytes, telaphase and rest stages respectively. 



Fig. 200. Pole view of first spermatocyte, the chromosomes not definitely arranged in the plane of the equator of the 

 spindle. 



Acholla mulUspinosa, Figs. S07-S11. 



Fig. 207. Spermatogonic monaster, pole view. 



Figs. 208, 209. Nuclei of first spermatocytes, early prophase. 



Fig. 210. Pole view of monaster, first maturation mitosis. 



Fig. 211. Pole view of monaster, second maturation mitosis. 



