202 MOLLUSCA FROM THE CRAG. 
Venus viraGo. Lovén. Ind. Moll. Scand., p. 40, 1846. 
Capsa virco. “Leach.” Ann. Mag. Nat. Hist., vol. xx, p. 272. 
Cunerus Fasctatus. Dacosta. Brit. Conch., p. 204, 1778. 
VENERUPIS VIRGINEA. Fleming. Brit. Animals, p. 452, 1828. 
— SARNIENSIS. Id. “A p- 452. 
PULLASTRA VIRGINEA. SS. Wood. Catalogue, 1840. 
— os Forbes. Rep. Agean. Invert., p. 180, 1843. 
TAPES VIRGINEA. Forbes and Hanl. Hist. Brit. Moll., vol. i, p. 388, pl. xxv, figs. 4, 6, 1848. 
Spec. Char. Testa ovata, compressiusculd, inequilaterali, postice magiore et longiore, 
subangulatd ; concentrice inequaliter striatd, striis versus posticum majoribus ; lunuld 
lanceolata. 
Shell ovate, somewhat compressed, inequilateral, posterior side the larger and 
longer, subangulated, ornamented with concentric striz or ridges, and these are 
larger or broader on the posterior side; lunule elongated. 
Length, \3 inch; hezght, 1 inch. 
Localities. Cor. Crag, Sutton. 
Red Crag, Sutton, Walton-on-the-Naze. 
Mam. Crag, Bramerton. 
Uddevalla. 
Recent, Norway, Britain, Mediterranean. 
From the Coralline Crag my specimens are few and fragmentary; in the Red 
Crag it was not abundant; specimens, however, are in my cabinet sufficiently nume- 
rous and perfect to justify its bemg considered a fair identification, and I feel no 
hesitation in placing the Crag shell under the name of virginea ; it appeared also to 
have continued through the more recent period of the Mam. Crag, as a specimen of 
this species was obligingly sent to me for description by Mr. Wigham, who found it 
in the neighbourhood of Norwich, and it is also enumerated among the shells from the 
Clyde beds. In the living state it is one of our most abundant as well as one of our 
handsomest species ; and although our largest Crag specimen does not measure more 
than an inch and a half in length, the recent shell attains a magnitude of two and a 
half inches, a size exceeding those found in the Mediterranean. 
2. TAPES AUREA, Gmelin. Tab. XX, fig. 2a—4é. 
VENUS auREA. Gmel. Syst. Nat., p. 3288, 1788. 
— — Mat. and Rack. Linn. Trans., vol. vil, p. 90, pl. u, fig. 9, 1807. 
— = Turt. Brit. Biv., p. 155, pl. ix, figs. 7, 8, 1822. 
— — Phil. En. Moll. Sic., vol. i, p. 47, vol. ii, p. 35. 
— — Lovén. Ind. Moll. Seand., p. 40, 1846. 
— — Middendorff. Malac. Ross., p. 569, 1849. 
— mnea. Turt. Brit. Biv., p. 152, pl. x, fig. 7, 1822. 
— NITENs. Id. 3 p- 152, pl. x, fig. 8, 1822. 
—  NeBuLosA. Solander. Pult. Dorset., p. 34. 
