130 CARDIUM. 



tudinally striated, except a small space at the anterior end, 

 which is smooth ; the colour is white, stained with brown, 

 and irregularly spotted with red. Linnaeus, for this species, 

 has erroneously referred to Gualter, t. 75. f. A., which is 

 Venus pectinata. 



glaucum. 42. Shell heart-shaped, sub-antiquated, 

 with longitudinal ribs, and transverse mem- 

 branaceous recurved wrinkles ; umbones 

 violet. 



Cardium glaucum. Poiret Voyage en Barbarie, ii. p. 13. 

 Gmelin, p. 3253. Bruguiere Enc. Meth. p . 221. 

 Wood's Conch, p. 218. 

 Cardium virgineum. Lirmcsus Syst. Nat. p. 1124.? 



Inhabits the shores of Barbary. Poiret. Very common in the 

 Mediterranean, and particularly so on the coasts of Langue- 

 doc. Bruguiere. 



Shell about ten lines long, near an inch broad, and eight lines 

 high, white, except at the anterior end, which is bluish 

 grey, and the umbones, which are of a violet colour ; it has 

 twenty or twenty-one longitudinal convex ribs, crossed with 

 transverse membranaceous strise, which are recurved from the 

 margin towards the apex ; these ribs are not mentioned, al- 

 though Bruguiere says this shell so strikingly agrees in other 

 respects with the description of C. virgineum, that they may 

 probably be the same, especially as C. virgineum is said to 

 be a Mediterranean species, and Linnaeus may possibly have 

 thought the other characters so much stronger as to make it 

 unnecessary to notice the ribs in the short description which 

 he has given. 



fasciatum. 43. Shell roundish-ovate, pellucid, with 

 twenty-seven flattened ribs, and distant trans- 

 verse striae. 



Cardium fasciatum. Montagu Supp. p. 30. t. 27. f. 6. 

 Wood's Conch, p. 215. 



luhabits the coasts of the West of England. Montagu. Not 

 uncommon on the Southern shores of Wales and Ireland. 



Shell rather more than a quarter of an inch long, and about 

 three-eighths broad; whitish, with transverse interrupted 

 brown bands, which, particularly in the inside, appear like 

 rows of oblong spots ; it has about twenty-seven longitu- 

 dinal ribs, and a few distant elevated transverse stria?, which 



