xxvi CLASSIFICATION OF THE ANIMAL KINGDOM 

 PHYLUM III. CCELENTERATA continued. 



Class IV. CTENOPHORA. 

 Order 1. CYDIPPIDA. 

 ,, 2. LOBATA. 

 ,, 3. CESTIDA. 

 4. REROIDA. 



Appendix to Ctenophora 

 and Coeloplana. 



Order 1. PLATYCTENEA. 



Appendix (II) to Ctelenterata Me&ozoa. 



PHYLUM IV. PLATYHELMINTHES. 



Class I. TURBELLARIA. 

 Order 1. POLYCLADIDA. 

 ,, 2. TRICLADIDA. 

 ,, 3. RHABDOCOXLIDA. 



Class II. TREMATODA. 



Order 1. MONOGENETICA. 

 2. DIUENETICA. 



Order 3. ASPIDOCOTYLEA. 



,, 4. TEMNOCEPHALEA. 

 Class III. CESTODA. 

 Order 1. MONOZOA. 



,, 2. POLYZOA. 



Appendix to Platyhelminthes Class 

 NEMERTINEA. 



PHYLUM V. NEMATHELMINTHES. 



Class I. NEMATODA. 



Order 1. NEMATOIDEA. 

 ,, 2. NEMATOMORPHA. 



Class II. ACANTHOCEPHALA. 



Class III. CH.ETOGNATHA. 



Appendix to Xemathelminthes Chit- 

 tosomidiv, Echinoderidw, and Desmos- 

 colecidce. 



PHYLUM VI. TROCHELMINTHES. 



Class I. ROTIFARA. 

 Order 1. RHIZOTA. 

 ,, 2. BDELLOIDA. ; 

 ,, 3. PLOIMA. 

 Sub -order a. Illoricata. 

 ,, b. Loric.ala. 

 Order 4. SCIRTOPODA. 



Order 5. TROCHOSPH^IRIDA. 

 ,, 6. SEISONIDA. 



Class II. GASTROTRICHA. 



Appendix to Trochelmintb.es Dino- 

 philea and Histriobdellea. 



Class I. POLYZOA. 



Sub-class I. Ectoprocta. 

 Order 1. OYMXOLJEMATA. 

 Sub-order a. Cydostomata. 

 ,, b. Cheilostomata. 

 c. Cteno&tomata. 



PHYLUM VII. MOLLUSCOIDA. 



Order 2. PHYLACTOLJEMATA. 

 Sub-class II. Endoprocta. 

 Class II. PHORONIDA. 

 III. BRACHIOPODA. 

 Order 1. INARTICULATA. 

 2. ARTICULATA. 



PHYLUM VIII. ECHINODERMATA. 



Class I. ASTEROIDEA. 



Order 1. PHANEROZONIA. 



,, 2. CRYPTOZONIA. 

 Class II. OPHIUROIDEA. 

 Order 1. LYSOPHIUR.*:. 

 ,, 2. STREPTOPHIUR,^;. 



Order 3. CLADOPHIUIWK. 



,, 4. ZYGOPHIUR^E. 

 Class III. ECHINOIDEA. 

 Order 1. REGULARIA. 

 ., 2. CLYPEASTRIDEA. 

 3. SPATANCOIDEA. 



