APPENDIX. i*»;7 



TABLE X. 



GENETIC CYCLE OF THE ECHINODERMATA. 



PROTOMOPHIC STAGE. 



The ciliated Germ, passing into the condition of au Anrun- 



laria, Bipinnaria, or Plutetts. 



ORTHOMORPHIC STAGE. 



The Echinodcnn, 

 (male and female). 



GAMOMORPniC STAGE, 



(merged in the foregoing). 

 Spermary, Ovary. 



Primary Sperm Cell, Ovum. 



Special Sperm Cells ) (The Germinal Vesicle, 

 and Spermatozoa. ) { and Macula. 



FECUNDATION. 



TABLE XL 

 GENETIC CYCLE OF THE POLYZOA. 



PROTOMORPHIC STAGE, 



(merged in the following). 

 The ciliated Germ. 



ORTHOMORPHIC STAGE. 



Double Polype-embryo. 

 Polypes. 

 Ramose Zoophyte — monoecious or dicecion.n ; 

 with male and female polj-pe.s. 



GAMOMORPHIC STAGE, 



(merged in the foregoing). 

 Spermary, Ovary. 



Primar}^ Sperm Ccl], Ovum. 



Special Sperm Cells ) C he Germinal vesicle 

 and Spermatozoa. 3 ^ and IMacula. 



FECUNDATION. 



