178 ON SYSTEMATIC ZOOLOGY. 



that we deem it unnecessary to cite particular in- 

 stances. The best, indeed, which the experienced orni- 

 thologist can possibly have, is the preceding table of 

 the series of genera, containing a full exposition of 

 the ornithological system of the Regne Animal, which, 

 except in the primary divisions, and with reference to 

 the materials possessed by each, is inferior to that of 

 Linnaeus. 



(228.) The Cuvierian arrangement of the Reptiles 

 and Fishes need not be here enlarged upon ; for, inde- 

 pendent of the space which the details of these divisions 

 would occupy, our own arrangement of these classes 

 will be nearly the same as that of the Regne Animal. 

 With the class of insects M. Cuvier had no acquaint- 

 ance, that having been entirely written by the celebrated 

 Latreille, of whose system we shall subsequently speak. 

 M. Cuvier' s great merit lies in the anatomical investiga- 

 tion of those soft animals, placed by Linnaeus in the 

 class of Termes. Here his discoveries and observations 

 are so original and valuable, that we feel assured the 

 student will be desirous of seeing them noticed some- 

 what more in detail. 



(229.) II. The MOLLUSCA, with M. Cuvier, form the 

 second of his great divisions of the animal kingdom ; 

 and he divides them into the six following classes : 

 1. Cephalopoda, or cuttle-fish ; 2. Pteropoda, or wing- 

 footed Mottusca ; 3. Gasteropoda, or univalve shell- 

 fish ; 4>. Acephala, or bivalve shell-fish ; 5. Brachiopoda, 

 or parasitic shell-fish ; and, lastly, 6. the Cirripeda, or 

 barnacle shell-fish. The following table, which enu- 

 merates most of the family groups, will give a good 

 idea of the system pursued : 



