27 



from the Mediterranean, and probably other fouthern 

 latitudes. 



Whether it has bred in our feas and become natural- 

 ized, is not afcertained. In a piece of timber now before 

 us, perforated by this and the Teredo Navalis, it is re- 

 markable how effeftually they deftroy the planks of a fliip 

 by their conjoint aftions : the Pholas perforates the wood 

 acrofs the grain, while the Teredo inlinuates itfelf witlr 

 the grain in all dire6lions. 



E 2 DIV. 



