so flattered on the surface as to appear one uniform 
smooth level. Common on sandy shores, abundant at 
Shellness,in Kent. 2%. +4. 
Grenus.—SABELLARIA. 
Tubes gregarious, forming one mass, resembling honey- 
combs on the upper surface, composed of sand, 
broken shell and small stones ; apertures cup- 
shaped, 
S. Atveotata. Lam. 1.—Sapeira a. Lin 1268.— 
Mont. p. 540—Pen. t. 92. f. 162.—(Ellis Coral. t. 
36.) Don. ¢. 139.—With numerous tubes placed 
parallel to each other, contiguous but not interfering, 
apertures somewhat expanded. Common, Margate, 
near Tenby, near Weymouth, Sc. 
GrEnus.—TEREBELLA. 
Tube solitary, elongated, cylindraceous, attenuated 
and pointed at its base, pervious only at the apex, 
composed of agglutinated sand or shelis. 
T. Curysopon.—SaBE1ia. C. Mont p.546.—An 
Lin. 1269.—Mart. f. 29, 30.—Tube free, cylindrical, 
about as large as a goose-quill, composed of sand, 
fragments of shell or small flat pieces of stone cemented 
on a tubular membrane which is smooth within: mouth 
furnished with numerous long fibres of the same texture. 
