PLATE 2 



Figs. 8-1 o. Sex glands of three pairs of the combination Amhystoma maculatum 

 X Triturus torosus. m, gonads of A. maculatum; T, Triturus gonads. All x 188. 



Fig. 8. Case mac-Ti: normal testis of salamander, rudimentary gonad of newt. 



Fig. 9. Case mac-Tgi normal ovary of salamander, normal testis of newt. 



Fig. 10. Case mac-T,;: Slightly reduced ovary of salamander, normal testis of 

 newt. 



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