706 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [June 7> 



Family XL CARDiiDiE. 



1. Cardium ciltare, Linne. 



Cardium ciliare, L.S.N.p.ll22. 



Cardium paucicostatum, G. B. Sowerby, Conch. 111. f. 20. 



'Porcupine' Exp. 1870: Med. St. G. Bona (young), Benzert 

 Road, Adventure Bank (valves and young). 



Distribution. "LaManche" (De Gerville)1, N. Spain, Vigo Bay 

 and Lisbon {McAndrew), S.W. France (Fischer), Mediterranean, 

 Adriatic ; 2-45 fms. 



Fossil. Pliocene: S. France, Italy. Post-tertiary: Calabria. 



Differs from the young of G. aculeatum in being thinner, more 

 globose and oblique, having fevrer ribs and stronger sculpture. It 

 assuredly is not the young of C. echinalum. Reeve, in his ' Concho- 

 logia Iconica ' has figured the present species as C. ciliare and G. 

 paucicostatum. 



2. Cardium aculeatum, Linne. 



Gardium aculeatum, L. S. N. p. 1122 : B. C. ii. p. 268 ; v. p. ISO, 

 pi. xxxiv. f. 1, Irt. 



• Porcupine ' Exp. 1870 : Atl. St. 1 7 (fragment), Vigo B. (young); 

 Med., 50 (young). 



Distribution. British coasts, Bergen (M. Sars), Holland, France, 

 Coruiia, Mogador, Mediterranean, Adriatic ; 4-20 fms. It is a 

 southern form. 



Fossil. Upper Tertiaries and Post-tertiary : Scotland ?, Lanca- 

 shire?, S. France, Italy, Morea. 



As to the Bergen locality, it appears that there has always been a 

 considerable trade in stock-fish between that and Mediterranean 

 ports ; and therefore the occurrence at Bergen of a single dead spe- 

 cimen of G. aculeatum must not be considered positive proof of its 

 inhabiting the Norwegian seas. Mr. Norman also doubts the loca- 

 lity, because LepraUa violacea, a southern Polyzoon, is attached to 

 the Bergen specimen of Cardium. 



L,, 3. Cardium echinatum, Linne. 



Cardium echinatum, L. S. N. p. 1122 : B. C. ii. p. 270; v. p. 181, 

 pi. xxxiv. f. 2. 



'Porcupine' Exp. 1869: St. 6 (young), 9, 10, 18, 24, 33, 35, 

 61. 1870: Atl. 10, Vigo B., C. Sagres (\av. deshat/esii), Tangier 

 B. (var. rarispina). 



Distribution. Iceland, Faroe I., and Finmark southwards to the 

 Sea of Marmora, Adriatic, Morocco, Madeira, Canaries; 0-100 fms. 



Fossil. Upper Tertiaries : Austria, S. France, Italy, Algeria, 

 Morea, Rhodes. Post-tertiary : Iceland, Scandinavia, British Isles ; 

 0-600 ft. 



Mr. Duprey tells rae that this and many other bivalves which live 

 between tide-marks, go out of the sand directly the tide begins to 

 flow, especially when the weather is fine ; a heavy shower stops their 

 appearance. 



