Classification of the Animal Kingdom. 357 



BRANCH XII. CHORDA'TA (kor-da'-ta). 



Subbranch I. Adelochor'da Balanoglos'sus. 

 Subbranch II. Urochor'da sea squirts. 

 Subbranch III. Vertebra' ta. 



Division A. Acra'nia (without cranium) lancelet. 

 Division B. Crania'ta all other vertebrates. 

 Class I. Cyclostom'ata lamprey eels. 

 Class II. PIs'ces (pts'-sez) fishes. 



Subclass I. Elasmobran'chii shark, ray. 

 Subclass II. Hdloceph'ali Chimera. 

 Subclass III. Teleos'tomi. 



Order I. Crossopterygii Polyp'terus. 



Order II. Chondrostei sturgeon. 



Order III. Holostei gar pike, dogfish (of Central states). 



Order IV. Teleos'tei most bony fishes, such as catfish, 



salmon, herring, mackerel, codfish, perch. 

 Subclass IV. Dip noi lungfish. 

 Class III. Amphib'ia. 



Order I. Urode'la mud puppy, siren, salamander. 

 Order II. Anu'ra frog, toad. 

 Order III. Gymnophio'na blind snake. 

 Class IV. Rgptfl'ia. 



Order I. Squama'ta lizard, snake. 

 Order II. Chelo'nia (ke-lo'-ni-a) turtle. 

 Order III. Crocodll'ia alligator, crocodile. 

 Class V. A'ves. 



Division A. Rati'tae (breastbone without keel) emu, ostrich. 

 Division B. Carina'tae (breastbone keeled). 

 Order I . Pygop'odes loon, grebe. 

 Order II. Impen'nes penguins. 

 Order III. Turbina'res pet/rels. 

 Order IV. Steganop'odes cormorant, pelican. 

 Order V. Herodio'nes heron, stork. 

 Order VI. An'seres duck, goose. 

 Order VII. AccTp'itres hawk, owl, vulture. 

 Order VIII. Crypturi tinamou. 

 Order IX. Galll'nae grouse, quail, turkey. 

 Order X. Gral'lae rail, crane. 

 Order XI. Ga'vias gull, tern. 



