572 SABELLA. CONCRETE-SHELL. Cl. VI. 



11. CURTA. Mojit. Test. Br. 554. 



* S. with a tube composed of particles of sand 

 and stone, sometimes of the finest sand alone, 

 on a tough membrane, somewhat tapering; 

 length scarcely one inch ; size that of a crow 

 quil. Animal, a Terehella. 



Covers the whole surface of the shore in the 

 inlet near Kingsbridge, Detwfishire. 



12. TUBi- S.Belgica. Gm. Lin.374Q. Pallas Misc. Zool. llj. tah. 



FORMis Amphitriteauricoma.zZ;.3111. ix. fl^. 1—13. 



tide. , . . . 



Nereis cylindracea belgica. S. granulata. L'hi. Si/si. 1268. 



3Io7it. Test. Br. 544. 



S. with a case of a taper strait form; made up 

 of minute particles of sand, most elegantly put 

 together. 



Its animal described at p. 91. 



Common on all our sandy shores. Tab, xcv. 



13. COM- ^^''"f- Test. Br. 555. 



TRESSA. 



* S. with a broad and extremely flat tube, com- 

 posed of large fragments of bivalve shells, chiefly 

 of tlie Pectoi ; length about an inch and a half, 



