XXXIV 



CLASSIFICATION OF THE ANIMAL KINGDOM 



PHYLUM X. ARTHROPODA continued. 



Class V. ARACHNIDA. 

 Order 1. SCORPIOXIDA. 



2. PSEUDOSCORPIOXIDA. 

 ,, 3. PEDIPALPIDA. 

 ,, 4. SOLPUGIDA. 

 ,, 5. PHALAXGIDA. 

 6. ARANEIDA. 



Order 7. ACARIDA. 

 ,, 8. XIPHOSURA. 

 ,, 9. EURYPTERIDA. 



Appendix to the Arachnida The 

 PYCXOGOXIDA, LIXGUATULIDA, and TAR- 



DIGRADA. 



PHYLUM XI. MOLLUSCA. 



Class I. PELECYPODA. 



Order 1. PROTOBRAXCHIA. 



,, 2. FlLIBRAXCHIA. 

 ,, 3. PSEUDO-LAMELLIBRANCHIA. 

 4. EULAMELLIBRAXCHIA. 



Sub-order a. Integripalliafa. 

 ,, b. Sinupalliata. 



Class II. AMPHINEURA. 

 Order 1. PLACOPHOKA. 

 ,, 2. APLACOPHORA. 



Class III. GASTROPODA. 



Sub-class I. Streptoneura. 

 Order 1. ASPIDOBRAXCHIA. 

 Sub-order a. JJo<'Of//oxa. 

 ,, b. Rhipidoglossa. 



PHYLUM XII. 



SUB-PHYLUM I. ADELOCHORDA. 

 Class. ADELOCHORDA. 



SUB-PHYLUM II. UROCHORDA. 



Class. UROCHORDA 



Order 1. LARVACEA. 

 ,, 2. THALIACEA. 

 Sub-order a. Cyrlomyarin. 

 ,, b. Hf.mimyn ri. 

 ,, <. Pyrosomata, 

 Order 2. ASCIDIACEA. 



Sub-order a. Axriili.tr xii,tj,/ir<:. 



Order 2. PECTIXIBRAXCHIA. 

 Sub-order . 



S[-I;-I-HYLUM III. VERTEBRATA. 



Division A. Acrania. 

 Class. ACRANIA. 



Sub-class II. Euthyneura. 

 Order 1. OPISTHOBRAXCHIA. 

 Sub-order a. Tectibranchiata. 

 ,, b. Nudibranchiata. 

 Order 2. PULMOXATA. 



^Appendix to the Gastropoda Class 

 SCAPHOPODA and RHODOPE. 



Class IV. CEPHALOPODA. 



Sub-class I. Dibranchiata. 

 Order 1. DECAPODA. 

 ,, 2. OCTOPODA. 



Sub-class II. Tetrabranchiata. 



CHORDATA. 



Division B. Craniata. 



Class I. CYCLOSTOMATA. 



Order 1. PETROMYXONTES. 

 ,, MYXIXOIDEI. 



Class II. PISCES. 



Sub-class I. Elasmobranchii. 

 Order 1. CLADOSELACHEA. 

 ,, 2. PLEURACAXTHEA. 

 ,, 3. ACAXTHODEA. 

 ,, 4. SELACHII. 

 Sub-order a. Protoxelarhii. 



,, b. Eiixthivhii. 

 Section a. Squalida. 

 ,, /S. Rajida. 



Sub-class II. Holocephali. 



,, III. Teleostomi. 

 Order 1. CROSSOPTERYGII. 

 2. CHOXDROSTET. 



