

CLASSIFICATION OF ANIMALS. 333 



tilus, pinna, argonauta, nautilus, conns, cypraea, bulla, voluta, buo 

 cinum, strombus, murex, trochus, turbo, helix, nerita, haliotis, 

 patella, denlalium, serpula, teredo, sabella. 



Order 4. The zoophytic are compound animals, furnished with 

 a kind of flowers, and having a vegetating root and stem. This 

 order contains fifteen genera, viz. tubipora, madrepora, millepora, 

 cellepora, isis, antipathos, gorgonia, alcyonium, spongia, flustra, 

 tubularia, corralina, sertularia, pennatula, hydra. 



Order 5. The infusorial consist of very small simple animals. This 

 order contains fifteen genera, viz. brachiouus, vorticella, trichoda, 

 cercaria, leucopera, gonium, colpoda, paramecium ; cyclidium, bur- 

 saria, vibrio, encheli*, bacillaria, volvox, monas. 



The Vermes, or worm class, consists of animals very differently 

 formed, of very different manners, and inhabiting very different 

 situations. Under the Liunaean arrangement they may, in a gene- 

 ral view be divided into such as are naked, and such as are covered 

 with a shelly or other defeusive integument. They consist, in fact, 

 of all auimals which Linnaeus regarded as below the rank of insects 

 and which he did not know how else to dispose of; and in this 

 respect are analogous to his class of cryptogamia in botany. 



The method of Cuvier, which we shall immediately subjoin, will 

 be found a considerable improvement upon that of Linnaeus in this 

 respect. He separates the mollusca and testacea from the proper 

 worms and the zoophytes, and arranges them into a distinct division, 

 as we have already observed he pursues in the Crustacea. 



Blninenbach, as we have also remarked, chiefly differs from 

 Cuvier, as well in this as in the preceding classes, in his subdivi- 

 sions; for in the grand outlines of their arrangements the two me- 

 thods may be regarded as one and the same : and we now proceed 

 to run a parallel between them, for a comparison with the foregoing 

 classification of Linnaeus. 



Animals, as indeed we have already observed, are distributed in 

 the view of these celebrated physiologists into two grand divisions : 

 those which have a vertebral column and red blood, and those which 

 Lave no vertebrae, and are white-blooded. 



In the former division there is alwavs an interior skeleton; and a 

 spinal marrow contained in the vertebral canal ; never more than 

 four members, of which one, or both pairs, are wanting in some 

 instances. The brain is contained in a cranium : there is a great sym- 



