372 SABELLA. CONCRETE-SHELL. Cl. VI. 



11. CDRTA. Mont. 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 Tei^ebella. 



Covers the whole surface of the shore in the 

 inlet near Kingsbridge, Devonshire. 



12. tubi- S. Belgica. Gm.Lin.374Q. Pallas Misc. Zool. 117. tab. 



FORMIS 



tube. 



Arnpb.itriteauric0ma.2T>. 3111. ix. Jig. 1 — 13. 



Nereis cylindracea belgica. S. granulata. Lin. Syst. 1268. 



Mont. 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, 



M 2. 



13. COM- Mont. Test. Br. 555. 



PRESSA. 



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

 posed of large fragments of bivalve shells, chiefly 

 of the Pecteii ; length about an inch and a half, 



