11 



2. The names must be Latin in form. 



3. After the name of the species may be the name of the author 

 who first described it. 



4. The vahd name of a genus or species can be only that name 

 imder which it was first designated and defined in some published 

 work, except specific names published before 1758, or changes due 

 to subdivision of groups. This is known as "The Law of Priority." 



CLASSIFICATION 



See Parker and Haswell's Text-book of Zoology, or their Manual 

 of Zoology. 



Phylum PROTOZOA 

 Animals in which the entire body consists of a single animal cell. 



Subphylum Sarcodina — Protozoa in which the motile organs are 

 pseudopodia. 

 Class Rhizopoda — Sarcodina without axial filaments in the pseudo- 

 podia. 



Amceba proteus as an example of this class. Habitat of Amoeba. 

 Form. Pseudopodia. Mode of movement. Substance of which 

 body is composed termed protoplasm. Division of the body into 

 ectosarc and endosarc. Nucleus. Contractile vacuole. Taking of 

 food. Growth. Reproduction by simple or binary fission. Charac- 

 teristics of living beings. Definition of the term cell. 

 Subphylum Mastigophora — Protozoa with an outer cell-integument 



and in which the motile organs are flagella. 

 Subphylum Infusoria — Protozoa with an outer cell-integument and 



which are always ciliated either through life or in the young 



condition. 



Subphylum Sporozoa — Parasitic Protozoa typically without organs 

 of locomotion, and which reproduce by spore-formation. Group 

 not a natural one. 



Phylum PORIFERA 



Not discussed in this course. 



Phylum CCELENTERATA 



Not discussed in this course. 



