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Explanation of Plates XXX\'-XL. 



All figures of fixed and stained eggs, except fig. 35, were' drawn with Zeiss 

 Camera lucida at table level imder Leitz obj. j\; oc. 2. Figures of living eggs 

 (viz., figs. 1, 2, 3, 4, 6, 8, 10 and 11) were drawn as above, Init with Loitz obj. 7; 

 oc. 2. Fig. 35 was drawii with B and L. obj. ^\; oc. 1. All drawings hav<> 

 been reduced one-third. 



