SPERMATOGENESIS OF ASCARIS FELIS GOEZE 197 



SUMMARY 



The following are the most important points brought out in 

 this study: 



1. Ascaris felis Goeze shows nine chromosomes for the hap- 

 loid number, eight tetrad autosomes, and one hexad hetero- 

 chromosome. 



2. This heterochromosome consists of an idiosome attached 

 to the end of an autosome. 



3. This union occurs in the primary spermatocytes, the 

 idiosome being a separate chromatic entity during the sperma- 

 togonia! developmental period. 



4. The idiosome is of the X-type, undergoing quantitative 

 division at the time of the formation of the spermatids. 



BIBLIOGRAPHY 



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