200 CLASSIFICATION OF FISHES. 



gree of phosphoric splendour. The skin is not armed 

 either with spines or prickles, hut is nevertheless very 

 rough ; nor can these fish dilate their stomach. 



(1? ?•) Before proceeding further, let us see what 

 results attend this new distribution of the cheloniform 

 family, by comparing the several divisions, all of which 

 have been instituted long ago, and adopted by M. Cuvier, 

 although in a different series to that in which they now 

 appear. We shall place, therefore, the sub -families in 

 one column, and the primary orders of fishes in another. 



Analogies of the Balistid^e, or Cheloniform Fishes, 

 with the Primary Orders. 



.Sub-families of 

 the Balistid^:. 



Analogies. Orders. 



1. Balistma-. f D ^ r al p . fins tw0 > arraed with \ Acaathopteryges. 



{ spines. j 



2. Ostracince. { D °^ fin generally one; the rays j MALAC0FrERYGES . 



2. CcphalincB. \^^ QX ^ "* "^ ^JApodes. 



i r.- j ■ ^ Jaws neither bearins true.nor re- 7 -d, „„„„„„.„,„ 



i.Diodontfue. \ presenting false teeth. ' j Plectognathes. 



5. Tetraodince. ? Caktilagines. 



(178.) The analogies of the first, second, and third, 

 are so striking, that nothing need be said by way of 

 further illustration. In respect to the third, we have 

 the means of stating, that, as it represents the apodal 

 order, by the union of its fins, so does it theSyngnathidts, 

 not, indeed, in the form of its body, for nothing can 

 be more dissimilar, but in a part of its structure to 

 which we should hardly have looked for a resemblance, 

 namely, the eye (fig. 33. a): this, we can state, on Guild- 

 ing's authority, is of that particular construction seen in 

 the chameleon reptiles and the syngnathian fishes ; it is 

 conical and versatile, so that the fish can look different 

 ways at one time, — a most admirable provision for 

 such animals as are slow and heavy in their motions, 

 like the sun- fish and chameleons; or, by being fixed, 

 (like the pipe-fish) require great quickness of sight and 



