THE mmK, 263 



any toetli of the front row arc lost. It will be 

 mk^t^^mi^ fiEW^Illit description, thsB0-&#ife^i|h 



The sliark, no doubt, slicds its teetli at certdn 

 periods, and tlio posterior rows arc to supply, in 

 succession, the places of those so lost, as, in a 

 tmiober of jaws that I tot^ ^li«afe#i of iJiif^ir^l 

 species, tite mnonA iem Wtj heqnm^Ly mm 

 in a perpendicular direction, advancing to sup- 

 ply the place of the first. With respect to sucli 

 tet'tli Jiaving fangs, those of most siiecies have 

 merely rudiments of them, excepting the squalus 

 comnbicns, or porbeagle ^liaipkj wiilch hm twt) 

 di^lilH■r fan^ tO every tooth, and tliey luay bo 

 St Til ill tlie second and third, as well as in tlie 

 first rows. The; jKJstcrior rows haviuo" their points 

 turned backwards, prevent their prey, w^hen 

 seii^ed, 6m escaping. Th% te^^^4^k 

 are used by tli$ f^pimm natives, fixed Hmw^, 

 as knives. They arc attaciicd also to their spears, 

 arc used fur cutting themselves on occasions of 

 joy or grief, and were employed, ^^^''^'^'iously to 

 the liitmdiijc^tipii of Eiir^p^ knives, |ar ^ or- 

 nsiniental eayving of their weapons, domestio 

 utensils, &c. 



There is a species of shark at New Zealand 



* Blumenbach's Comparative Ajialamy, by Lawrence and 

 CoulsQfl, page 76* 



