BritJJJ} coaft; that from •which this defcriptioii is taken 

 v,'as found on drifted wood in the Frith of Forth by Mr. 

 Laskey. 



We are allured by this gentleman, that he obferved this 

 fpecies on the bottom of a veiTel that had been upfet and 

 towed into Dartmouth, mixed with anatifera and anjerifera, 

 which together completely covered the lower part of the 

 vellel. Inhabits the Jforwe^iati leas, as well as the Medi- 

 terrancayi. 



TEREDO. 



Anhnal an ASCIDIA. 



SHELL, with two principal hemifpheric valves, truncated 

 and open at the end, and two fmall lanceolate acceflbry 

 valves remote. 



Hinge furnifhed with a long incurvated tooth in each 

 valve. Tube teftaceous, fub-cylindric, flexuous, in which 

 the animal refides, but is unattached. 



Teredo navalis. Lin. Treats, vn'u p. M9-—Pult Hutch. Dorset. Navahs. 

 t, 1 8. f. 2 1 .—Phil. Trans, for 1 806. part U. p. 276. t. 1 2 <§' 1 3. P* ^^ ''" 



In 



