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(e) Carnivora (e.g. seal, walrus, jackal, dog, bear, wolf, 

 fox, tiger) ; 



(/) Rodentia (e.g. hare, rabbit, porcupine, beaver, rat, 

 mouse, and squirrel) ; 



(g) Insectivora (e.g. mole and hedgehog) ; 



(h) Edentata (e.g. ant-eater) ; 



(i) Cheiroptera (e.g. bat) ; 



(/) Bi-mana (e.g. monkey and man). 



CHAPTER CXIII. 



INSECTS. 



Insecta are characterised by the possession of 6 legs 

 on thorax. The head, thorax and abdomen are distin- 

 guishable. There is one pair of antennae. The thorax is dis- 

 tinguishable into three distinct segments, called respectively 

 the pro-thorax, the meso-thorax and the meta-thorax, and as 

 there is the sternal and the dorsal or notal side to each 

 segment, the wings are distinguished as meso-notary or 

 meta-notary, as the case may be. The heart, as in spiders, 

 consists of 8 chambers, and there are two opposite currents 

 distinguishable. The spiricles are on the abdominal segments 

 only. 



1,193. Hymenoptera. These have a long proboscis i. e., 

 a sucking or lapping organ ; the ovipositor of the female is 

 usually a stinging organ as well. There are four wings with 

 few veins. The wings are apparently naked but frequently 



