r iitia' 



WORMS. TESTACEA. 88. Sabella. 613 



Schroet, flufconcb< tab. il*/g* IX 7* 

 Inhabits fburingta : about an jnch lpng.^ 

 Shell fometimes conic, fometimes cylindrical. 



Shell black, the open end cylindrical and narrower, the 

 liu " other part turgid and ovate. 



Schroet. Einl. in conch. 2. tab 6. Jig. 21. 



Inhabits above 2 inches long, compofed of particles of black 



fand ; within fmooth. 



^ 



Norwerica. Shell roundidi, open at both ends, brittle, membranaceous, 

 compofed of very minute grains of fand. 

 Schroet. EinL in conch, z. p. 591. «. ZO. 



Inhabits Norway : above 4 inches long, and about the thicknefs 

 of a crow's quill. 



lumbricalis Shell coarfe, creeping, fragile, open at both ends: the in- 

 habitant not furniihed with tentacuia at the mouth, 

 with a prickly jointed body. 

 O. Fabr.fn. Groen/. p. 374. n. 369, 

 Inhabits the deeps of the Greenland feas, fixed to llones. 

 Shell grey, compofed of particles of fand cemented to a fomewhat 

 convex membrane, within lubricous, polifhed : inhabitant ru- 

 fous annulate with white, beneath paler, with 21 joints, each 

 armed on the back with 2 fpines, and 2 other terminal ones 

 which are unarmed. 



hdica. Shell cylindrical, compofed of capillary fubcylindrical ag- 

 glutinated cryftals of quartz. 

 Abildg. Schr. Berl. Naturf. 9. $ % 144. tab. 4, 

 Inhabits the Indian Ocean* 



ORDER 



