318 



feen it, by giving it the ndime of e burn eus, (as Mr. Ad ants 

 informs us.) 



27. 

 Ulv^. Turbo Ulvae. Br. Zool. t. 86. f. 120.^Turt. Lin. iv. p.499^ 



Da Cojia. p. 105. 

 Helix UlviE, Pah. Cat. Dorfet. p. 49. 



T. with from five to feven fmooth volutionSj not 

 rounded, but nearly flat, feparated l)y a fmall line; apex 

 moderately pointed: colour opaque, dark, or rufous- 

 brown : aperture fub-oval; inner lip refletied on the Co- 

 lumella, forming a flight depreflTion behind, but no um- 

 bilicus. Length generally about a quarter of an inch; 

 but we have found it at Foole of an extraordinary fize, 

 nearly three-eighths of an inch long, and one eighth 

 broad. Dead fliells are frequently ofa dull opaque white ; 

 operculum corneous, radiated with arched flri;c from the 

 inner margin. 



This is a very common fpecies in mofl; of our inlets 

 and harbours, but feldom on the open fiiores expofed to 

 the fury of the waves. 



Is frequent on ulv(S and other marine plants, and on 

 the mud about high water-mark; fometimes in fuch vail 

 profufion as to almoft cover the furface: and it is obferv- 

 able, where thefe are found in quantity, fcarce any other 

 convoluted fliell is feen, except perhaps T. littoreus, T^ 

 rudis, and one or two other common Ipecies. 



Turbo 



