SOLEN. RAZOR-SHEL L. 
163 
striate concentrically about the ends, but nearly smooth in 
the middle and towards the hinge 5 inside glossy white : 
hinge not quite central, with the teeth projecting beyond 
the margin $ in one valve a single subulate tooth, locking 
between two in the other, one of which is subulate, the 
other slightly cloven: length about an inch 5 breadth two 
and a half. 
On the western coasts : rather rare. v.v. 
10. Soldi fragilis. Brittle Razor-shell. 
Dorset Cat. pi. 4. f. 5— Wood, pi. 29. f. 4, 5. 
Shell oblong, thin, brittle, transparent, white covered 
with a dark greenish skin, a little contracted in the middle 
of the front margin, rounded at both ends, with a faint red 
longitudinal stripe commencing from the hinge, growing 
broader and fainter, and at length disappearing towards the 
front margin \ inside glossy white, with a raised longitu¬ 
dinal ridge from the hinge growing broader and obsolete 
towards the margin ; hinge until a single tooth in one valve 
locking between two in the other : length nearly half an 
inch; breadth an inch and a half. 
It differs from the last in being less, broader in propor¬ 
tion to its length, quite transparent, and especially in the 
raised longitudinal ridge on the inside. 
Dorset coast, Scotland, and the North bull in Dublin bay. 
r. m. 
11. Solen vespertinus. Variable Razor-shell. 
Lister^ pi. 417- f.' 26 1 —Pennant, pi. 50. f. 2, and pi. 38, 
lower fig.-— Woody pi. 33. f. 2, 3— Dorset Cat. pi. 5. f. 1. 
Tellina variabilis. Donovan , pi. 41. f. 2. 
• Shell oblong-oval, opake, sometimes covered with a 
blackish-brown skin, pale straw-color with pale purple lon¬ 
gitudinal rays, often yellowish about the beaks, rounded at 
the smaller end, a little truncate and sloping at the other, 
and striate concentrically; inside glossy yellowish-white, 
'rilh often a faint appearance of the outer rays: hinge 
with single cloven tooth in one valve and a hollow oh 
each side; in the other valve two teeth, one of which is 
cloven: length an inch or more ; breadth above two. 
On the western coasts, and Dublin and Bantry bays. v. v. 
12. Solen 
