HIGH SCHOOL ZOOLOGY. 



275 



TABULAR YIK\N— (Continued). 



Class V. — Mammalia 



II. — Arthropoda— 



O, 1. Monotremata . . 



2. Marsupialia . . . . 



3. Edentata 



4. Cetacea 



5. Sirenia 



6. Perissodactyla 



7. Artiodactyla . . 



8. Proboscidea . . 



9. Hyracoidea . . . 



10. Rodentia 



11. Insectivora 



12. Pinnipedia .. . . 



13. Caniivora 



14. Chiroptera . . . . 



15. Lemuroidea . . 



16. Primates 



Class 1. — Crustacea. 



Sub-class — Malacostraca (higher orders) 



Entomostraca (lower orders) 



Gigantostraca and Trilobitae 



Class II. — Arachnida. 



O. 1. Arthrofiastra (Scorpionina. 

 Phalangfina, &c. ) 



2. Acarina 



3. Araneina 



Class III. — Jtyriapoda 

 Class IV.—Insecta. 



III. — Vermes. 



O. 1. Thysanura . . . 



2. Orthoptera . . . 



3. Neuroptera. . . 



4. Hemiptera . . . 



5. Diptera 



6. Lepidoptera . . 



7. Hymenoptera 



8. Coleoptera . . . 



" IV.— MOLLUSC.\ — 



A. Acephala. 



Class I. — Lamellibranchiata 



B. Cephalophora. 



Class II. — Scaphopoda 



Class III. — Gastropoda. 



O. 1. Prosobranchiata . . 



2. Pulmonata , 



3. Opisthobranchiata 



4. Heteropoda 



Class IV. — Pteropoda. 



O. 1. Gymnosomata . . . , 

 2. Thecosoniata 



Living. 



3 

 149 



42 



155 



5 



23 



250 



2 



12 

 800 

 150 



30 

 340 

 415 



55 

 219 



3525 



2075 



5 



250 



900 



2500 



800 



100 



6000 



1000 



14000 



ISOOO 



20000 



25000 



80000 



5500 



5000 



80 



9000 



6000 



900 



60 



24 



74 



Fossil. 



800 



150 



600 



1760 



316 



40 

 2600 



9000 



160 



6000 

 600 

 300 

 160 



225 



