158 
SOLEN. RAZOR-SHELL. 
pering to a long neck on the upper part, with six longitu¬ 
dinal ribs placed at equal distances, and a small knob at 
the base : length not the tenth of an inch. 
In fine sand. v. m. 
27. Serpula squamosa. Wicker-bottle Creeper. 
Montagu , pi. 14. f. 2. 
Shell white, globular, marked with transverse undulate 
lines like the scales of a fish, or a bottle covered with 
wicker-work : mouth a little produced : length half a line. 
I 11 fine sand. v. m . 
28. Serpula Retorta. Retort Creeper. 
Walker, f. 10. 
Shell white, opake, globular, but often compressed with 
a depression on each side near the centre, and a long nearly 
cylindrical neck which is curved back : length half"a line. 
In fine sand. 
29. Serpula Urns. Urn Creeper. Fig. 21. 
Montagu, pi. 14. f. L 
Shell glossy white, semitransparent, smooth, somewhat 
globular, but sloping rather suddenly like an urn into a 
short conic neck, with a slender appendage or knob at the 
base : length hardly a line. u. m. 
In fine sand. v. rn. 
SOLEN. RAZOR-SHELL. 
Shell with two valves, oblong, open at both 
ends : hinge with a reflected subulate tooth or two, 
not inserted into a groove in the opposite valve. 
A. With the hinge at one end , 1 to 6. 
B. With the hinge nearly central , 7 to 13. 
& 1. Solen Siliqua. Pod Razor-shell. 
Lister, pi. 409. f. 255— Pennant, pi. 48. f. 1 —Da Costa, 
pi. 1/. f. 5— Donovan, pi. 46— Wood, pi.26. f. 1, 2— Dor¬ 
set Cat. pi. 2. f. 5— Linn > Trans. vi. pi. 14. f. 10. 
Shell straight, slender, a little obliquely sloping at one 
end 
