PLATE CXXXIII. 



SABELLA TUBIFORMIS. 



STRAIGHT TUBE SABELLA, OR SAh*D SHELL, 



GENERIC CHARACTER. , 



Animal a Nereis, with a ringent mouth, and two thicker tentacuia 

 behind the head. Shell tubular, and cojnposed chiefly of sand, agglu- 

 tinated to a membranaceous tube, 



SPECIFIC CHARACTER 



AN 1> 



SYNONYMS. 



Shell soHtary, simple, tube-shaped, straight ; gradually tapering ; and 

 composed of brownish sand. 



Sabella TUBiroRMis : testa solitaria simplici tubiformi recta sen- 

 sim attenuata : granis arenaceis fuscis. 



Sabella granulata. lAnyi. 1268 ? — Martini^ 4. t. 4. 28 ? 



Sabella tubiforiMis. Tube Sabella. Fcnn. Brit. Zool. 4. 

 sp. 163. 



Straight Sabella. Pult. Ilisl. Dorset. 



The Sabella tubiformis of Pennant is believed by some concholo- 

 gists to be the same species as Linnaeus names fS'ranuIatu, but this 

 must certainly admit of doubt: the latter, from the description, ap- 



vol. IV. G 



