TRIBE PECTINIDES. 291 
S. Reetus. Lin. Sys.—Ch. 7, f. 471.—Lam. 9.—W. t. 9, Sp. f. 2. 
—Sow. Th. 1, p. 424, t. 87, f. 30. Regular, oval, scarcely attached, 
reddish brown (more rarely of an uniform white) between the ribs 
and upon the points of the spines: with about 6 principal ribs, each 
armed with 5 or 6 long straight spines, that are slightly flattened 
at their termination ; their intervals adorned with numerous sharply 
imbricated smooth costellz : cardinal area small. 4. Scoloo Isles. 
S. Coccingus. Sow. (as of Lam. 11) Th. 1, p. 480, Sp. f. 24, 47. 
Purple, radiatingly variegated with red near the umbones; with 
numerous subequal scarcely elevated ribs, that are armed with 
crowded unequal short strong spines. 2. W. Indies ? 
S. Crassisquama. Lam. 12.—Chenu, Ll. C. Spond. t. 11. f. 8.— 
S. Pictorum, Sow. (as of Ch. 7, t. 69, f. ©) Th. 1, p. 422, partly, 
t. 86, f. 28. Large, solid, of an uniform orange or scarlet hue; 
rayed with extremely numerous ribs and costelle, none of which are 
peculiarly elevated, but all thickly crowded with strong scaly spines, 
the costelle being similarly armed with the broader ribs. 5. 
‘China ;’ ‘ W. Columbia, 
S. SparHuLirerus. Lam. 13 (not synonyms)— Chenu, Il. C. 
Spon. t. 8, f. 1 to 4.—Sow. Th. 1, p. 421, Spon. f. 26, 61—(Kn. 6, 
t. 9, f.1?) Ranging in tint from saffron to crimson, seldom 
variegated, except at the beaks, which are usually white with 
splotches of the ground-colour; ribs depressed, differing little in 
size, about 6 or 7 of the broader of them (separated widely by about 
4 or 5 costelle) armed with large and rather distant elongated 
spathulate lamine, which, when finely developed, are somewhat 
disposed to foliation at their apices. Interstitial costelle rough 
with squamular spines; “the surface elsewhere crowded with ex- 
tremely small and minutely squamiferous radiating elevated striz. 
far. ‘The lamine yellow or white. 23. W. Indies. The 8. Vio- 
LASCENS of Lamarck (No. 21) is referred by Sowerby to this shell. 
S. Ducatis. Ch. 7, f. 477, 8—Lam. 14.—E. t. 191, f. 6— 
Chenu, Il. C. Spon. t. 8, f. 8.—Sow. Th. 1, p. 426, t. 85, f. 16. Solid, 
white, closely lmeated with smoky chocolate colour between the ribs ; 
rayed with tolerably numerous and moderately elevated broad coste, 
that are closely set with more or less flexuous white laminee, which are 
usually more or less erect, and are generally broadest at their apices ; 
1 The S. Impertauis, Chenu, Il. Con. Sp. t. 26, f. 2.—Sow. Th. 1, 
p. 424, t. 88, f. 43, 4, only differs from Recius in being-more de- 
pressed, having its principal spines less erect, and in exhibiting only 
3 interstitial costelle bristling with upcurved spinelets: ribs white, 
ground-colour brownish pink. 3. China. 
