LAMELLIBRANCHIATA. 343 



C. Loveni, Thompson. 



Shell of a somewhat rounded outline, with about thirty ribs, set with 

 small scales ; height and length equal ; colour pure Avhite. Length 3^- 

 lines ; breadth 3| ; very thin and delicate ; ribs rounded, about thirty in 

 number, and becoming beautifully fine towards the beak ; covered with 

 minute closely-set transverse scales throughout, but which are more nu- 

 merous on the ribs at each side ; furrows about the middle of the valve 

 smooth and shining, narrower than at the sides, where towards the base 

 they are crossed by transverse scales, and towards the apex punctate ; 

 near the beaks they appear in the form of a mere linear depression. 



Colour pure white, with somewhat of a pearly lustre inside and outside. 



Compared with the British species of Cardium, this comes nearest C. 

 edule, but is more handsome in form, sculpture, and colour. It is more 

 rounded (less truncate at the anterior end), has the beaks terminating in 

 a finer point, ribs more numerous and with the scales on them more closely 

 set, but less elevated, the furrows naiTower. 



Cardium scabniin, Philippi. Enum. Moll. Sicilise, vol. ii. p. 3f^, pi. 14. fig. 

 16, comes so near my shell, that future investigation may possibly show 

 that they should be brought together ; C. scabrum differs from it in hav- 

 ing only twenty-six ribs, in the furrows being equal and punctate, and in 

 its exhibiting two obscure violet rays, and having the beaks yellow ; but 

 as my specimens were not seen in a living state, stress need not be laid on 

 the difference of colour. This species was obtained in three localities 

 nearly about the same time. In October, 1841, numbers of it, but mostly 

 broken, Avere found by Dr. Farran in the stomachs of sole {Solea rnk/aris) 

 and plaice [PUitessa vulgaris) purchased in Dublin market, and taken off' 

 the eastern coast; in June, 1842, Mr. Hyndman ckedged a few specimens 

 from a depth of 50 fathoms, oft" the South Rock, coast of Down ; and spe- 

 cimens which I have seen in j\Ii'. Cuming's unequalled collection were 

 sent him by Dr. Loven, 1842, as a species unknown to him, and which 

 had been obtained on the west coast of Sweden. It is named in honour 

 of this distinguished naturalist. 



Among some minute shells, dredged in 1846 in or near Bantry Bay 

 by Mr. M'Anch'ew and kindly given to me, is one of this species. I saw 

 specimens of Dr. Farx'an's from Birterliuy Bay. 



Should C. scahruni prove identical, in four localities — from Sweden to 

 Sicily — -this has been subsequent to the publication of Philippi's first vol. 

 in 1836 ; and the species is for the fii'st time described In his second vol., 

 which appeared in 1844. 



Mr. Hanley informs me that Philippi considers C. nodosum, Mont., 

 this species. 



C. Icevif/atu7n, Linn. 



" Portmarnock, Bantry Bay," Turt. Dredged off Glenarm, in Belfast 

 and Strangford Loughs, sparingly, Mr. Hyndman and W. T. Clew Bav, 

 1840. 



Birterbuy Bay, single valves dredged from 18 to 20 fiithoms, liard sand. 

 Dr. Farran. South Isles of Arran, Mr. Barlce. 



In Bantry Bay it seems to be in greater ntunbers than ordinary. 



Lai'ge and abundant on Nymph Bank, R. Ball. 



Gcmis DoNAX. 



D. trunculun, Linn. 



Generally common on extensive sandv beaches. J'lenlil'ul close to low- 



