THE PRE-ADAMITE EAHTH. 



246. SINCE the technical names of several of the classes into 

 which the principal divisions are resolved will not be familiar to 

 some of the readers of this tract, it may be useful to indicate the 

 origins from which they are severally derived. 



Mammifers is from a Latin word, signifying the bearers of 

 breasts or paps, and consequently is applicable to animals which 

 suckle their young. 



Reptile comes from ne Latin word repto, I creep or crawl. 



Insects are so called from a Latin word, signifying the division 

 of its body into segments. 



Myriapods is a Greek word, signifying thousands of feet, 

 figs. 133, 134. 



Fig. 133. The Scolopendra. Example of the class Myriapods. 



Arachnida is taken from a Greek word, (apdxv-n, arachne,) 

 signifying a spider's web. 



Crustacea is taken from a Latin word (crusta), signifying a hard 

 covering or crust. 



Cirrhipeds, or Cirrhopods as it is sometimes written, take their 



Fig. 134. The lulus. Example of the class Myriapods. 



name from a Latin word (cirrhus), signifying hair, the compound 

 signifying hair-footed animals ; that is, whose members of loco- 

 motion are hairs, fig. 135. 



Annelides, as well as Annulata, is taken from a Latin word 

 (annulus), signifying a ring. 



Cephalopods is a Greek compound, signifying head-footed, or 

 animals whose organs of locomotion are upon their heads, figs. 9, 

 10, 11. 



Gastropods is likewise a Greek compound, signifying lelly- 

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