262 



seem calculated to try the strciigtli of their di- 

 geatire powers. It doea not iippear tiat tlseit 

 mm& of smell a^lways gmd^ thetaa lii jrciHsiidisg 

 food, as paper, cmvas, or indeed any thing 

 thrown overboard "which thev arc capaljle of 

 swallowing, is greedily devoured by them. To 

 correctly ijie habitat^ or extent of 

 xmg^k taken by mj particulsr spee^^ if liill* 

 tJtlltit ^ad requires ft.Itaineroiis collectioa of&CtS. 

 Frequent mistakes are made in this rcspeet ; as 

 in the instance of the Sfjuahis cornubici/s, or 

 porbeagle shark, whose habitat was supposed 

 to be cofiiSiiM to fh^ Britiidi cmM^ bnt wBkli I 

 have since discovered has been found, although 

 rarely, inhabiting tlie coasts of" \ew ZealaiuL 



The teeth of sharks vary in ditfcrcut s]>ccirs. 

 Blunieiibaeh observes, that in most of the 



tim3^ the mm&i h tmM&iMik very mtxm- 

 mm tee^ for the mpplf of mcli m may be Im, 



The white shark has more than two hmidretf, 

 lying on each other in rows, almost like the 

 leaves of an artichoke. Those only whieh ftn-m 

 the tout ?W a perpendicular direction, 

 and ar^ coHipletely ttaccnired.. Thm of the 

 suhsequcnt rows are, on the conti-ary, snudler, 

 have tlieir points turned backwards, and arc 

 covered by a kind of gum. These eome through 

 the covering substance, and passs^rward, wlieu 



