344 GINGLYMACONCHA. PECTINIDZ. 
Var. e. Valves with the epidermis white, elegantly orna- 
mented with rose-coloured spots. 
Var. Z. The right valve with the epidermis of one colour, — 
banded with yellow; the left valve with its ribs streaked with 
blood-red. 
This species is extremely common in the European seas, in 
deep water or sandy bottoms. 
The general colour of the shells of this species is pure white, 
whitish, saffron, orange, or of various tints of red or rose, 
with the ribs of the left valve marked with a red central line ; 
the right valve being plain white or radiated with yellow, mar- 
bled, spotted, concentrically banded or radiated with various 
tints of red, pure white or whitish : the inside is white, spotted 
with yellow or brownish-grey. 
This species occurs of every possible variation of tints of 
colour, caused by a mingling of those above-mentioned colours ; 
I have only distinguished as varieties such as are prominent 
and common. 
I have stated that it is only found in very deep water on 
sandy bottoms: I state this from the observations made by 
my friends C. Prideaux, Esq., Mr. J. Cranch and myself. 
It is an article of food on the western coasts of England. 
Shells higher than broad, with slender divaricating ribs; the 
right valve flattest, with its notch, ciliated with spines: the 
auricles nearly equal, 
3. PECTEN VARIUS. 
Shells high, somewhat rounded, both valves with twenty-six 
or thirty somewhat compressed ribs, having rough scales hollow 
beneath ; the interstices sculptured with divaricating striee ; 
the epidermis purplish, pale fuscous, brown, ferrugineous, red, 
orange, yellow or white. Length and height two and a half 
inches. 
Ostrea varia, Lister, Conch. t. clxxx. f. 17, t. elxxxi. f. 18, 
t. elxxxix. f. 23; Linn. Syst. Nat. 1146. no. 199; Giel. 
