( 93 ) 

 TABLE XIX. 



Monophyletic Pedigree of the Animal Kingdom, founded on the Gastrsea 

 Theory and the Homology of the Germ-layers."* 



O 73 



So 



Cfc, 



.Si's 



C-a o 



(U q - 



fe <u O 



.B ■*^ S^ 





Articulates 

 Arthropoda 



Vertebrates 

 Vertebrata 



Star-animala 

 Echinoderma 



Soft-bodied Animals 

 Moilusca 



CcElomati. 

 ( Worms with body-cavity') 



Plant-animal3 

 Zoophyta 

 {Cmlvnteratd) 



Sponges 

 Spongias 



Sea-nettles 

 (^Acaleph{E) 



Flat Worms 

 riatlielminibes 



Gastrffia radialis 

 (^stationary) 



Acoelomi 

 QWorms without body -cavity) 



Prothelmis 



Gastrjea bilateral is 

 (crawling) 



Gastrsea 

 (^Ontogeny: Gastrula) 



3-j S 



Hi B 



<1 I 



Primitive Animals 



Protozoa 



.Is 



'^q'S ■ 



"% °a 

 •s '»"§ <s 

 £ c 3 tiD 



'S (u =* Jh 

 o ^ +3 



Plan£eada 

 (Onfof7e«3/ : Blastula) 



Synamceba 

 (Ontogeny : Morula) 



Ciliata 



Gregaiina; 



i> 



Amoebse 



(^Ontogeny: Cytula) 



Monera 

 (Onboyemj: Monerula) 



