xxvi CLASSIFICATION OF THE ANIMAL KINGDOM 



PHYLUM III. CCELENTERATA continued, 



Class IV. CTENOPHORA. Appendix to Ctenophora Ctenoplann 



Order 1. CYDIPPIDA. and Cceloplana. 



,, 2. LOB ATA. Order 1. PLATYGTENEA. 



,, 3. CESTIDA. 



,, 4. REROIDA. Appendix (II) to Coelenterata Mesozoa. 



PHYLUM IV. PLATYHELMINTHES. 



lass I. TURBELLARIA. Order 3. ASPIDOCOTYLEA. 



Order 1. POLYCLADIDA. ,, 4. TEMNOCEPHALEA. 



2. TRICLADIDA. Class III. CESTODA. 



,, 3. RHABDOCCELIDA. Order 1. MONOZOA. 



,, 2. POLYZOA. 

 Class II. TREMATODA. 



Order 1. MOXOGENETICA. Appendix to Platyhelminthes Class 



2. DIGENETICA. NEMERTINEA. 



PHYLUM V. NEMATHELMINTHES. 



Class I. NEMATODA. Class III. CHJETOGNATHA. 



Order 1. NEMATOIDEA. 



,, 2. NEMATOMOBPHA. Appendix to Nemathelminthes Chit- 



tosomidce, Echinoderidce, and Desmos- 

 ClassII. ACANTHOCEPHALA. colecid*. 



PHYLUM VI. TROCHELMINTHES. 



Class I. ROTIFARA. Order 5. TROCHOSPH^RIDA. 



Order 1. RHIZOTA. ,, 6. SEISONIDA. 

 ,, 2. BDELLOIDA. 



3. PLOIMA. Class II. GASTROTRICHA. 

 Sub-order a. Illoricata, 



,, b. Loricata. Appendix to Trochelininthes Dino- 



Order 4. SCIRTOPODA. pliilta, and Histriobdellea. 



PHYLUM VII. MOLLUSCOIDA. 



Class I. POLYZOA. Order 2. PHYLACTOL^MATA. 



Sub-class I. Ectoprocta. Sub-class II. Endoprocta. 



Order 1. GYMXOLJEMATA. Class II. PHORONIDA. 



Sub-order a. Cyclostomata, III. BRACHIOPODA. 



,, b. Cheilostomata. Order 1. INARTICULATA. 



,, c. Ctenobtomata. ,, 2. ARTICULATA. 



PHYLUM VIII. ECHINODERMATA. 



Class I. ASTEROIDEA. Order 3. CLADOPHIUK^:. 



Order 1. PHANEROZONIA. ,, 4. ZYGOPHIURJS. 



,, 2. CRYPTOZONIA. Class III. ECHINOIDEA. 

 Class II. OPHIUROIDEA. Order 1. REGULARIA. 



Order 1. LYSOPHIUR.I:. ., 2. CLYPEASTRIDEA. 



,, 2. STREPTOPHIUK^-:. ,, 3. SPATANGOIDEA. 



