56 INVERTEBRATE ZOOLOGY. 



Order 7. Insectivera Small insect-eating mammals with all 



the teeth prolonged into sharp jwints. 

 Canines small or wanting. -^ Talpa. 



Order 8. Carnivora Beasts of prey with sharp well developed 



canines and pointed molars. The toes 

 are armed with claws, which may be- 

 come sharp and retractile. There are 

 two groups, one terrestrial, Fissipedia, 

 with toes separate, and one aquatic, with 

 toes strongly webbed, forming paddles — 

 Pinnipedia. -^ Felis, Phoca. 



Ooder 9. Cheiroptera The only flying mammals. Toes of ante- 

 rior limb exceedingly attenuated, thus 

 forming a frame work for a thin leathery 

 web, which also includes the hind limb 

 and tail. Thumb of fore limb and all 

 the hind toes free. Teeth pointed as in 

 Insectivora. In many respects similar to 

 the apes, as a discoidal placenta and a 

 single pair of pectoral mammary glands. 

 ■^ Vespertilio. 



Order 10. Prosimii A group of animals closely allied to the 



apes, but of a generally lower structure. 

 Appendages hand-like, with opposing 

 thumbs, biit with a double uterus, and a 

 diffuse placenta. The nails are devel- 

 oped into claws. 



Order 11. Primates Toes with flat nails. Apijendages more 



or less hand-like, and generally fltted 

 with opposing thumbs for grasping. One 

 pair of pectoral mammary glands. Pla- 

 centa discoidal. 



Sub-order 1. Platyi^rhini Nose flattened, nostrils separated by a 



broad septum, so that their orifices look 

 outward. Confined to the new world. 

 ■^ Cebus. 



