xxxviii CLASSIFICATION OF THE ANIMAL KINGDOM 



Phylum XI. MOLLUSCA. 



€las5 I. PELECYPODA. 



Order 1. PROTOBRAXObiiA. 



,, 2. FiLIBEANCHIA. 



„ 3. PsErDO-LAMELI.IBRAXCHIA, 



„ 4. ElI.AMELLIBRAXOHIA. 



fSub-order a. Inlei/i-ipnlliafn. 

 ,, /'. Shu/jt'ii/iafa. 



Order 5. Heptibkanchia. 



Class 11. AMPHINETTRA. 

 Order 1. Placophora. 

 ,, '2. Aplacophoka. 

 Class III. GASTROPODA. 

 Sub-class I. Streptoneura. 

 Order 1. Aspidobranchia. 

 Siib-ordci- 1. Doeoglossa. 

 ,, 2. liliiijidoijlofi.^n. 



Order '2. Pectixibra.nchia. 

 Sub-order 1. Platypoda. 

 ,, 2. Heteropoda. 

 Sub-class II. Euthyneura. 

 Order 1. Opisthoeranchia. 

 Sub-order 1. Tec/ihratichia. 

 ,, 2. ^inlihraitchia. 



Order 2. Pulmonata. 



Appendix to the Gastropoda — Class 

 SCAPHODA and KHODOPE. 



Class V. CEPHALAPODA. 

 Sub-class I. Dibranchiata. 

 Order 1. Deoapoda. 

 „ 2. Ogtopoda. 

 Sub-class II. Tetrabranchiata. 



PfiYLU.M XII. CHORD ATA. 



SUB-PHYLU.M I. ADELOCHORDA. 

 Class ADELOCHOEDA. 



Sue-phylum II. UROCHORDA. 



Class UROCHOEDA. 



Order 1. Larvacea. 

 ,, 2. Thali.vcea. 

 Sub-order n. Cydoinijaiin. 

 ,, h, H&miniyarm. 



, , - . Ft/rosomata. 



Order 3. Ascidialea. 



.Sub-order ((. Ancidin- simjiHce-i. 

 ,, Ji. Asciili'i' romjtonilii-. 



Sub-phylum III. EUCHORDA. 

 Section I. Acrania. 



Section II. Craniata. 



Class I. CYCLOSTOMATA. 



Order 1. Petp;omy'ziintes. 

 ,, 2- MVXINOIDEI. 



-Class II. PISCES. 



Sub-class I. Elasmobranchii. 

 Order 1. Cladoselachii. 



,, 2. PLEnKACA\TI[i;i. 

 ,, 3. ACANTHODKI. 



,, -i. Selactiii. 



Sub-order a. Protosdachii. 

 . ,, h. Easelachii. 



tSe'.tion a. SqtKtlifhf. 

 ,, 8. Rdjida. 



Sub-class II. Holocepbali. 



,, III. Teleostomi. 



Order 1. CIiossoptery'gii. 

 ,, 2. Chondrostki. 

 ,, .1. holostei. 



4. Teleostei. 

 Sub-order n. Physostomi. 



,, h. Anariiuthini. 



,, (-'. Axanthopteri. 



,, (I. Pharyngoffufifhi 



,, ''. PlectO(/natki. 



,, J. Lophohranrhii. 



Sub-class IV. Dipnoi. 



Order 1. .Mc-ixopxeumona. 

 ,, 2. Dipxeumoxa. 



Appendix to Pisces — The Ostracodermi. 



Class III. AMPHIBIA. 

 Order 1. Up.hdela. 

 „ 2. .Antra. 



,, 3. (iY'MXOPHIOXA. 



., 4. Stecocephala. 



