CHROMOSOMES IN ECHINOID EGGS 



DAVID H. TENNENT 



PLATE 1 



H , 



I ' 



}i 





IC 





\/ 



/MM 



6 



^ '^fw,^< /^, /' 'AV%/A N'f'^'i'!' 



2A 



2B 



2C 



r^m^' ';>.'^'..^ I 



li 



3A 3B 3C 





7A ^ 



^'ll^^■;'/ ii,' 



V 



/ 





A 



7 I 



'f<>> 



4A 



4B 



8A 



• 8B 



'M/ 



5A 5B 





9A 9B 



&)4^.ccJl. 



27 



