280 



FISHES. 



The face in fishes is furnished besides with two apparatuses, which 

 are altogether unknown in the preceding classes of animals ; for no 

 one, at least, has affected to find them, except through the medium 

 of analogies, which are exceedingly debateable : the apparatus of 



The two lachrymals or 

 os unguis. 



Body. 

 The rhinosphal, 

 ethmoidal lamina. 



The anterior 

 frontals. 



or The vomer. 



Inferior Ring. 

 The two palatine por-jThe transverse 

 tions of the maxilla 



The two vomerals or 

 the vomer. 



Remarks. 



These hones exist in 

 the crocodiles, in the 

 tortoises, &c. on the 

 side of the two lachry* 

 mals characterized for 

 such, and cannot be 

 substituted for them. 



Parts supposed jThese bones are purely 

 to be soldered hypothetic in fish, 

 to the vomer. 



inferior ring are se- 

 perated from the other 

 pieces by the pterygoi- 

 deens. 



THIRD VERTEBRAE. 



Superior Ring. 

 The two frontals. 



The two palpebral, or 

 cartilaginous tarsi. 



The principal 

 frontals. 



Body. 

 The Ethmophenal, or 

 body of the ethmoid ; 

 the two adorbital, or 

 obitary portions of the 

 maxillaries. 



Inferior Ring. 

 The two adorbitals or The first sub , 

 orbitary portions of orD jtors. 

 the Maxillaries. 

 The two palatals or T1 

 palatines. 



How can the tarsal 

 cartilages, which are 

 entirely detached, con- 

 tribute to the superior 

 ring which is closed 

 independently of them? 



A cartilage Here, again, is an in- 

 placed behind jterarticular cartilage 

 the ethmoid, elevated into a bone. 



This vertebrae is still 

 more disjointed, the 

 palatines and the first 

 suborbitals are sepe- 

 rated from the frontals 

 by the anterior frontals ; 

 it is impossible to see 

 either superior ring or 

 inferior ring continued. 

 In the system which 

 admits but of three 

 vertebrae, each verte- 

 brae has the advantage 

 of being continued. 



FOURTH VERTEBRA. 



Superior Ring. 



The two pt^ral or great 

 wings of the sphenoid. 

 The two ingrassian or 

 orbitary wings of the, wings 

 sphenoid. 



Thegreatwings 

 The orbitary 



Body. 



The entosphenal or, The anterior 

 anterior body of the sphenoid, 

 sphenoid. 



This vertebrae is the 

 most disjointed of all 

 for its inferior ring ; 

 for neither the poste- 

 rior suborbitors nor 

 the pterygoidean have 

 any connexion with the 

 three bones, they are 

 quite wide apart. 



