Mammals 



"Birds 



lOOOO 



Reptiles 



3000 



'Amphibians 



700 



Arachnida 



4000 



\ Tunicata, etc. 



•s\. 400,^ I 



Crustacea 



6000 



'^Arihehds 

 otifersO-^::<\ 



Echinoderms(^y^y\\ 



Thread lVorms\\\ 



Flat IVormsr^-'^ _ , 



noo \-Xf )Coelenterates 



( \ Protozoa 



700 



4000 



