542 



S. with a loner, [lender tube, cjraduallv l2r:erins: to 

 the lower extremity, which is fmall, andfiexuous; the 

 upper part is nearly {trait ; the interior part is fonned of 

 a tough, coriaceous, fub-pellucid fubfiancc, finootli 

 within ; tlic external covering is wholly extraneous 

 coinporcd of the fincft particles of fand, or earthy mat- 

 ter, afjijlutinated tofjether, forming- an even, and fome- 

 what fmooth furface, of a dull brown colour, fometimes 

 marked with a few faint wrinkles. Diameter at the lar- 

 ger, or open end, a quarter of an. inch ; length fix or 

 feven inches - 



This fpecies, not hitherto noticed as BritiJJi, is found 

 on feveral parts of our coafts, but does not gro^sf to the 

 lize met with in the Mediterranean. We firft noticed it 

 on the fliore at Teigmnouth, and afterwards dredged up 

 feveral, with their animals, at Torcrofs in Devonjliire, 

 adhering to Afcidia Mentula, and interwoven with abie- 

 tina and other Sertularia : have alfo found it on the 

 north ftiore, near Poole, cluftered, and fmgle. 



The beauty of the animal inhabitant (which is an Am- 

 p/utritej is not to be feen in fuch as are brought to E7ig- 

 land in fpirits : we mull examine fuch in their natural 

 element, to form a perfe6l idea of their extreme ele- 

 gance. Thofe we took alive were immediately put in 

 a glafs of fea water, and by fuch means were kept alive 

 two or three days, giving a full opportunity of examin- 

 ing them in various dates. In this fituation the plumofe 



tentacula 



