SQUALID.E. 



CHONDROPTERYGJ1. 



SQUALID&. 



THE BLUE SHARK. 



Carcharias glaucus, Le Bleu, 



CUVIER, Regne An. t. ii. p. 388. 



Galeus 

 Sqitalus 



tt 



Carcharias 

 Squalus 



Blew Shark, WILLUGHBY, p. 49, B. 8. 



Le Cagnot bleu, BLOCH, pt. iii. pi. 86. 



Blue Shark, PENN. Brit. Zool. vol. iii. p. 143. 



,, ,, FLEM. Brit. An. p. 167, sp. 13. 



,, ,, JENYNS, Brit. Vert. p. 499. 



Sqnale bleu, BLAINV. Faun. Franc, p. 90. 



CARCHAIUAS. Generic Characters. One anal and two dorsal fins ; the first 

 dorsal placed over the space between the pectoral and abdominal fins. Jaws 

 and head depressed. Teeth flat, pointed, and cutting ; serrated in the upper 

 jaw only, sometimes in both jaws. No temporal orifices in adults, but rudi- 

 ments may be observed in the foetus of some of the species. 



THE publication by MM. Muller and Henle of their 

 general work, containing Systematic Descriptions of the Car- 

 tilaginous Fishes with Transverse Mouths,* has induced me 

 to modify the arrangement of the Sharks followed in the 

 former edition of this History of British Fishes, and has 

 enabled me also to make useful additions to the generic 

 characters. 



The affection of the Blue Shark for its young was the 



* Systematische Beschreibung der Plagiostomen. Berlin, 1841. 



