CLASSIFICATION OF ANIMALS. 



PROTOZOA 



MESOZOA . 

 f 



/'Rhizopoda. 



Infusoria .{^^^^,^_ 

 I Foraminifera, 

 I^Sporozoa. 



DicyeiuidEB. 



SpoTigidce 



{Hydrozoa. 

 Actinozoa. 

 Gtenophora. 

 {Echinuridse. 

 Asteridse. 

 Holothuridse. 

 / i Treraatoda. 



Platyhelminthes -J Cestoda. 

 I Nemertini. 



ACHORDATA 



= Invertebrata 



Vermes 



O 

 SI 

 <( 



ArtJi^opoda 



CHORDATA 



=Vertebrata. 



[A more re- 

 cent classifiba- 

 tion' of Verte- 

 brates has just 

 appeared, by 

 Dr Hans Ga- 

 dow, and will 

 be referred to 

 later.] 



Mollusca . 



ACBAlflA 



Craniota 



Nemathelminthes { Nematoda. 

 Annelida 



/Peripatus. 

 Myriopoda 



_ Acanthocephala. 

 rChaetopoda, 

 -( Gephyrea. 



I Hirudinea. 



Crustacea 



Arachnoidea 



Insecta 



f lulidse. 

 * \ Scolopendridge. 



( Malacostraca. 

 ' \ Entomostraca. 



( ScorpionidEe. 

 . -\ AraneidsB. 



( Aearina. 



iColeoptera. 

 Hymenoptera. 

 Ijepidoptera. 

 Diptera. 

 Hemiptera. 

 Neuroptera. 

 Orthoptera. 

 Aptera. 

 / Lamellibranchiata. 

 . 1 Gastropoda. 

 ] Pteropoda. 

 \ Cephalopoda. 

 / Brachiopoda. 

 ' \ Polyzoa. 

 ( Hemichordata (Balanoglossus). 

 -j Urochordata (Ascidians). 

 ( Cephalochordata (Amphioxus). 



/ Marsipobranchii. 



I Mollusca 

 J (Proper) 





MoUuscoidea 



I Pisces 



\ Elasmobranchii. 

 . ■( Ganoidei. 



Ichthyopsida < 



) Dipnoi. 



Saurppsida . 



MaTiwialia 



. Teleostei. 



{Ophiomorpha. 

 Anoura. 

 Urc(dela. 

 'Chelonia. 

 Ophidia. 

 Lacertilia. 

 .Crocodilia. 

 / Ratitse. 

 \ Carinatae. 

 Omithodelphia = Monotremata. 



I Amphibia 



I Reptilia 



I Aves 



Didelphia 



\ Monodelphia 



:Marsupialia. 



(Edentata, 

 Sirenia. 

 Cetacea. 

 Ungulata. 

 Proboscidea. 

 Camivora. 

 Rodentia. 

 Insectivora. 

 Cheiroptera. 

 Primates. 



1 Tlirips (Thysa'^opUra) are now placed in a separate order. 



