PLATE 18 
EXPLANATION OF FIGURES 
First spermatocyte complexes from atypical individual 2526 
120 to 128 Lateral views. 
129 and 130 Polar views. 
There is a supernumerary pair (S) present in all spermatogonial and first 
spermatocyte cells containing metaphase figures in this individual. But the 
chromosome count is not constant, for two prophase cysts containing the super- 
numerary in an unpaired condition were found. 
= 
t= 
rs 
