318 GINGLYMACONCHA. VENERIDZ. 
Seba, Mus. wi. t. f. 7; Linn. Syst. Nat. 1122. no. 81; 
Gmel. Syst. Nat. 3248; Pult. Cat. Dorset. 31. t. ii. £2 ;— 
Mont. Test. Brit. 79, 568; M. & R. Trans. Linn. Soe. vi. 
64; Lam. Syst. des Anim. sans Vert. vi. part. 1. 8; Flem.— 
Edinb. Encycl. 91 ; Wood, Gen. Conch.i. 210. t.1. f. 1, 2; 
Dill. Desc. Cat. 117; Turt. Conch. Dict. 28. 
Testa junior. 
Gacdiam nodosum, Mont. Test. Brit. 81; Flem. Edinb. En- 
cycl. vil. 92. 
Testa junior, Turt. Conch. Dict. 29. 
This species is found abundantly in the British and Medi- | 
terranean seas ; on our coasts at Dawlish, Torbay, Falmouth, 
Penzance, Weymouth, Torquay, England ; Friths of Forth and 
Clyde, Scotland ; Yawl, Bantry, Cork, and Dingle Bays, Ire- 
land. 
4. CARDIUM EDULE. 
Shells thick, rotundately-cordate, oblique, somewhat anti- 
quated ; with twenty-six rounded ribs, rather approximating, 
somewhat depressed, and transversely sculptured with elevated 
lines ; the interstices smooth. Epidermis whitish or yellowish- 
white, often bluish behind, and towards the hinge deep red. 
Length two inches ; height two inches and three quarters. 
Cardium edule, Linn. Faun. Suec. 2141; Lnnn. Syst. Nat. 
xii. 1124. no. 90; Penn. Brit. Zool. iv. 91. t. 1. f. 42; 
Chem. Conch. vi. t. xix. f. 194; Gmel. Syst. Nat. 3252; | 
Da Costa, Brit. Conch. 180. t. u. f. 1; Pult. Cat. Dorset. 
30. t. ii. f. 1; Mont. Test.. Brit. 76; VM. & RB.) Prams: 
Linn. Soc. 65; Lam. Hist. Nat. des Anim. sans Vert. vi. 
part. i.12;? Flem. Edinb. Encycl. vi. 91; Dill. Desc. Cat. 
114; Turt. Conch. Dict. 30. 
Cardium rusticum, Lister, Conch. t. ecexxxiv. 171; Donov. 
Brit. Shells, t. exxiv. f. 2; Wood, Gen. Conch. i. 226. t. ly. 
f. 4. 
This species is extremely common in the European, Atlantic, 
Mediterranean and Adriatic seas. 
I have some doubts whether the species described by La- 
marck be the same with our species, as his description does not 
