410 



NATURAL HISTORY. 



Sub-order II. SUB-BRACHIATA. (Lat. sub, under ; brachiwn, an arm.) 

 Family VI. . . GadidtE. (Gr. Tutioc.) 



MORRI1VA. 





Callarias (Gr. 



), tne Cod. 



When taken, the fish are placed in a well boat, through 

 which the salt water has a free passage, so that the cod-fish are 

 brought to Billingsgate still living. Several successful experi- 

 ments have been made to preserve this fish in salt water ponds, 

 in which it appears to thrive well. The fecundity of this fish is 

 almost incredible, the roe of one fish having been ascertained to 

 contain nine million eggs. The Whiting belongs to this family. 



In the Flat-fish we see a most extraordinary instance of 

 adaptation of structure to peculiar circumstances. We have 

 all seen Flat-fish, and all know that the upper side is dark, 

 and the under side nearly white. The word " side" is used 

 advisedly, as these curious fish actually lie on their sides at 



