514 



■nearly ftrait, or flightly llcxuous ; but always turning- 

 with the fun : aperture orbicular. Diameter at the lar- 

 ger end two-tenths of an inch, gradually tapering to a 

 fine point ; length four or five inches. 



This fpecies has probably been confounded with the 

 S. vermicularis , from which, indeed, it might be difficult 

 to fcparate it, was it not for the great difference in the 

 animals. We have, however, obferved that 5. vcrmi- 

 cularis is ufually attached to fome other body its whole 

 length, and never reOefts in the manner of this. 



It is by no means common; thofc we procured alive 

 •were at Torcrofs in DcvonJJiire, where an opportunity of- 

 fered of examining the animal, by putting the fhells in- 

 to a glafs of fea water as foon as they were dredged up : 

 thefe were affixed to old bivalves", the fineft fpecimens 

 were on that of the Ma6lra lutraria : two had their bafe 

 entwined, and the larger ends attached longitudinally, 

 afcending in an angle of thirty degrees. 



The animal is an Amphitrite, with between fifty and 

 fixty annulations ; the head long, white, barred with 

 pink and green ; on each fide a loofe, fcalloped, tranf- 

 parent membrane, capable of contraftion and expan- 

 fion, and frequently furrounding the under part: ten- 

 taenia two, beautifully feathered, each originating from 

 a fingle fl:alk, placed near to each other on the fore part 

 «cf the head: on one fide of each of thefe (talks are long 



fibres. 



