SOLEN. 
MOLLUSCA. SOLENIDiE. 
459 
oblique, shortest dorsally ; teeth flattened on the rubbing surface ; the oppo- 
site sides strengthened by a rib 5 syphons connected ; pale yellow, longitudi- 
nally striated, and annulated with brown, the openings fimbriated. 
562. S. novacula. — A single strong, curved, blunt tooth in 
each valve ; shell destitute of the terminal stricture. 
Mont. Test. Brit. 47- Turt. Biv. Brit. 80 — English and Irish coasts. 
Length 1 inch, breadth 8 ; nearly resembling the following, but differing 
in the number of teeth and the absence of the lateral teeth. 
563. S. Shell straight, two teeth in one valve, one 
in the other ; with a tooth-like laminar marginal process behind 
each. 
Concha fusca, List. An. Ang. 192. t- v. f. 37. Conch, t. ccccix. — S. sil. 
Linn. Syst. i. 1113. Penn. Brit. ZooL iv. 83. t. xiv. f. 20. MonL 
Test. Brit. 46. Turt Biv. Brit. 80 — On sandy shores, common. — 
-B, Basor fish ; S., Spout fish. 
Length upwards of an inch ; breadth from seven to eight ; cuticle olive- 
brown, darkest at the anteal extremity ; the lateral teeth are remote, rising 
behind into an angular plate. — The animal is used as food, and considered as 
a delicacy ; when a little stale, it forms a tempting bait for the cod and 
haddock. Dr Turton describes a shell under the title S. ligula (Biv. Brit. 82. 
t. vi. f. 6.) differing only from this species in the single tooth being “ compres- 
sed, rounded, and obtuse at the top, where it is slightly cloven.” 
564. S. Ensis. — Shell a little recurved, two teeth in one 
valve, and one in the other ; one of the lateral teeth grooved. 
S. curvus. List. Conch, t. ccccxi — S. ensis, Linn. Syst. i. 1114. Penn. 
Brit. Zool. iv. 83. Mont. Test. Brit. 48, Turt Biv. Brit. 82. — San- 
dy shores, common. 
Length |ths of an inch, breadth 6 inches, but usually much smaller ; cur- 
vature of the shell regular ; the lateral marginal teeth are low, with the left 
one recurving the opposite into a linear groove. 
565. S. purpureus.—0\Aiq\x^y truncate retrally, and irregu- 
larly striated transversely. 
Mya purp. Mont Test. Brit. Sup. 21.— Agina purp. Turt Biv. Brit. 54. 
t. iv. f. 9.— In rocks, Torbay. 
Length one-eighth of an inch, breadth a quarter ; convex ; opake, with a 
glossy cuticle, beaks prominent, nearly terminal ; hinge, with a strong conic 
tooth in each valve, penetrating a cavity of the opposite valve. 
Hinge not terminal, the anteal extremity rounded. 
566. S. pellucidus. — Dorsal margin nearly straight, ventral 
margin slightly curved. 
Penn. Brit. Zool. iv. 84. t. xlvi. f. 22. Mont Test. Brit. 49. Turt Biv. 
Brit. 83 — In sandy bays. 
Length a quarter, breadth upwards of an inch ; pellucid, fragile ; rounded 
at each end ; the hinge is removed but a short way from the extremity, and 
consists of one tooth in one valve, and two teeth in the opposite with conti- 
guous lateral processes. 
567. S. Legumen . — Dorsal and ventral margins slightly round- 
ed ; compressed, and narrow retrally. 
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