HAPLOIDS 



14-7 



ter halves pass to the poles. A small cell cuts off from 

 a large one. The latter becomes the functional sperm. 

 It has the haploid number of chromosomes. 



The male rotifer, Hydatina senta, is said to be haploid 

 (Fig. 87c), and the females diploid. Under unfavor- 



FiG. 87. 

 A, parthenogenetic female of Hydatina senta; B, young female 

 of same; C, male of same; D, parthenogenetic egg; E, male-pro- 

 ducing egg; F, winter egg. (After Whitney.) 



