FAMILY TELLINID — SANGUINOLARIA. 213 
This is a very common shell along our shores, and appears to exist from Maine to Florida. 
It affords a plentiful supply of food to the numerous wild fowl which visit the shores of Long 
island. ‘There appears to be several varieties in the colors and marking. ‘The young are 
very small and thin; the teeth not developed, polished white ; others are larger, roundish, 
and of a delicate pink within and without: there are still others larger and proportionally 
wider, tinged with red or brown when decorticated. 
SANGUINOLARIA SORDIDA. 
PLATE XXXII. FIG. 305. 
(STATE COLLECTION.) 
Tellina sordida, Coutuovy, Bost. Jour, Nat. Hist. Vol. 2, p. 59, pl. 3, fig. 11. 
S. sordida, Govu.p, Invertebrata of Mass. p. 67. 
Description. Shell thin and fragile, inequilateral, obscurely triangular, slightly gaping. 
Epidermis thin and brittle ; beneath which the surface is marked with numerous incremental 
lines. Beaks very small, and behind them the margin slopes away in nearly a straight line. 
Teeth two in each valve ; the largest bifid. 
Color. Epidermis dusky brown; surface iridescent : within polished white, with faint ra- 
diating striz. 
Vertical axis, 0°2; transverse ditto, 0.3. 
They are said to occur nearly an inch in their greatest length; the largest I have seen did 
not exceed 0°5. These latter were procured by Mr. Charles Wheatley, in dredging in the 
mud in five fathom water off the Quarantine ground. Those described by Messrs. Couthouy 
and Gould, were exclusively from the stomachs of fishes. 
(EXTRA-LIMITAL.) 
S. lusoria. (Psammobia? Say, Ac. Sc. Vol. 2, p. 304. Conrap, Mar. Conch. pl. 7, fig.) Shell 
oblong, suboval, with minute wrinkles; posterior side narrowed, and inclining to the right at the 
end: an obtuse convex line on the left valve. Color: epidermis pale; beneath, bluish white. 
Vertical axis, 0°6; transverse ditto, 1-0. New-Jersey to Florida. 
S. rugosa. (Lam. Vol. 2, p. 558, Ed. Brux.) Ovate, ventricose, longitudinally rugose. Color, vio- 
laceous behind; nymph blackish, violaceous: posterior area none. Forida. 
