Class VI. TEREDO. PIERCER. 367 



GENUS XXXIV. TEREDO. PIERCER. 



Animal, unknown. 

 Shell slender, bending. 

 Valves, two, testaceous, hemispherical, cover- 

 ing the head ; two lanceolate, near the tail. 



Lin. Syst. 1267. No. 807° Lin. Tr. viii. 24g. 1, navalis. 



Gm. Lin. 3747* Mont. Test. Br. 527. shi P> 



Faun. Suec. No. 2087. 



Justly called by Linnceus, calamitas nwcium. 

 Was imported from the Indies. Penetrates 

 into the stoutest oak plank, and effects their 

 destruction. 



