8. DESCRIPTION OF PLATES 



Abbreviations 



A, first polar body nucleus 

 Ai, outer nucleus of first polar body 

 Ai, inner nucleus of first polar body 

 As. E., asexual embryo 



A. T., adipose or fat tissue 



B, second polar body nucleus 

 Bi, second polar body nucleus 

 B2, female pronucleus 



D.E.C., definitive or true embryonic 



cells 

 E.B., embryonic cell or blastomere 

 F.N., fertilization or cleavage nucleus 

 I.M., outer membrane 

 I.M.C., inner membrane cells or nuclei 



M.C., mesenchj^me cells of host 



No., nucleolus 



No.C, blastomere receiving nucleolus 



Nu., egg or oocytic nucleus 



O.M., outer membrane 



P., Polar nucleus or nuclei 



P.M., polar membrane 



Pr.M., primary mass 



P.S., protoplasmic strand 



S., sperm or sperm nucleus 



S.M., secondary mass 



T.M., tertiary mass 



1st M., first maturation spindle 



2nd M., second maturation spindle 



All figures in plates 1 to 11 were drawn with aid of the camera lucidt 



45 



