RISE AND PROGRESS OF ZOOLOGY. IxXV 



more especially, which Linnaeus and his suc- 

 cessors confounded with the zoophytes, and 

 other more simple animals, under the common 

 name of vermes, our author has assigned to 

 their proper place, at the head of the inverte- 

 brated tribes. They are distinguished from the 

 rest, by an organization much more complete, 

 by the existence of a heart or a brain more or 

 less complicated. In one entire class (the an- 

 nelides,) M. Cuvier has discovered red blood 

 and a circulating system, which class had been 

 confounded by Linnaeus, with worms in gene- 

 ral, and particularly with the intestina. This 

 justifies the title of invertebrated animals, 

 given first by M. Lamarck, to this immense 

 portion of the animal kingdom, instead of 

 white-blooded animals, the name by which they 

 were formerly distinguished. The zoophytes 

 have been also established by our author 

 within their proper limits, as have also been 

 the Crustacea, which had been confounded in 

 the immense family of insects. But we shall 

 say nothing more respecting the merit of our 

 author, than that his Regne Animal is the com- 

 pletest and most scientific zoological arrange- 

 ment that the world has ever seen ; that it is the 

 very grammar of the science, and must be pro- 

 foundly studied by every person who proposes 



