APPENDIX. 



PRINCIPAL DIVISIONS OF THE ANIMAL KINGDOM. 



Notes. — 1. The examples of the various orders given ia this table are not a 

 complete list of all included in the orders, but are typical forms. 



2. In some places, where the scientific name is the same as the common 

 name, or where the animal is not indigenous to this country, the scientitic name 

 is omitted. 



SECTION I INVERTEBRATES. 



Vital organs contained in a single tube. No internal skeleton ; 

 limbs, when present, turned toward main mass of the nervous system. 

 Page 11. 



SUB-KINGDOM I.— PROTOZOA. 



Masses of protoplasm, usually minute and unicellular. No definite 

 "body-cavity" or nervous system. Digestive system rudimentary. 

 Page 18. 



Class A. Gregarinida. — Parasites ; no mouth ; no power of 

 throwing out '■ pseudopodia." Page 21. 



Class B. Rhizopoda. — No mouth ; possess power of throwing 

 out " pseudopodia." Orders 4, as follows : 1. Monera. Ex. : Proto- 

 genes. — 2. Ainoebsa. Ex. : Amceba, Difflugia. — 3. Foraminifera. 

 Ex. : Lagena, Nodosaria, Globigerina. — 4. Radiolaria. Ex. : Thalas- 

 sicolla, Polycystina, C'oUozoa. 



Class 0. Infusoria. —Have power of becoming '"encysted." Usu- 

 ally possess a mouth ; armed with vibrating cilia, " flagella " or suckers. 

 Orders 3: 1. Ciliata. Ex.: Paramcocium, Bell-animalcule (Vorticella). 

 — 2. Flagellata. Ex. : Euglena. — 3. Suctoria. Ex. : Podophyra. 



Porifera (Sponges) is an intermediate group bet. Protozoa and 

 Coelenterata. — Ex. : Spongilla, Euploctclla. 



SUB-KINGDOM II—CCELEXTEEA TA. 

 Radially symmetrical; mouth opens into a space which represents 

 alimentary cavity ; body-wall of two layers ; no circulatory system ; 

 imperfect nervous system ; distinct reproductive organs. 



