202 MOLLUSCA FROM THE CRAG. 



VENUS VIRAGO. Loven. Ind. Moll. Scand., p. 40, 1846. 

 CAPSA VIRGO. "Leach." Ann. Mag. Nat. Hist., vol. xx, p. 272. 

 CUNEUS FASCIATUS. Dacosta. Brit. Conch., p. 204, 1778. 

 VENERUPIS VIRGINEA. Fleming. Brit. Animals, p. 452, 1828. 



SARNIENSIS. Id. ,, p. 452. 



PULLASTRA VIRGINEA. S. Wood. Catalogue, 1840. 



Forbes. Rep. JSgean. Invert., p. 180, 1843. 

 TAPES VIRGINEA. Forbes and Hani. Hist. Brit. Moll., vol. i, p. 388, pi. xxv, figs. 4, 6, 1848. 



Spec. Char. Testa ovatd, compressiusculd, inaquilaterali, postice magiore et longiore, 

 subangulatd ; concentrice incequaliter striatd, striis versus posticum majoribus ; lunuld 

 lanceolatd. 



Shell ovate, somewhat compressed, inequilateral, posterior side the larger and 

 longer, subangulated, ornamented with concentric striae or ridges, and these are 

 larger or broader on the posterior side ; lunule elongated. 



Length, 1J inch; height, 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 being 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. 2 a b. 



VENUS AUREA. Gmel. Syst. Nat., p. 3288, 1788. 



Mat. and Rack. Linn. Trans., vol. viii, p. 90, pi. ii, fig. 9, 1807. 

 _ _ Turt. Brit. Biv., p. 155, pi. ix, figs. 7, 8, 1822. 

 Phil. En. Moll. Sic., vol. i, p. 47, vol. ii, p. 35. 

 LovSn. Ind. Moll. Scand., p. 40, 1846. 

 Middendorff. Malac. Ross., p. 569, 1849. 



^NEA. Turt. Brit. Biv., p. 152, pi. x, fig. 7, 1822. 



NITENS. Id. p. 152, pi. x, fig. 8, 1822. 



NEBULOSA. Solander. Pult. Dorset., p. 34. 



