340 MOLLUSCA. 



Nymph Bank, where it is known to the fishermen by the name of powder- 

 horn— they roast the animal for food. P. frogiiis outside Kinsale harbour, 

 Cork Fauna. Although the Pinna is marked as found on each side of 

 the island, it is very rarely met Avith except on a portion of the southern 

 coast, where it is common. The very few specimens, all taken in deep 

 water, which I have seen from the coasts of Londonderry, Antrim, Down, 

 and Louth, were of large size, and all P. i/if/ens or P. frai/ilis (Turt. Brit. 

 Biv., pi. 20, f. 2). A specimen of P. ingens, 14 inches in length, di'edged 

 off Cape Clear, has been noticed as presented by Lieut. Wilson, R. M., to 

 the Dublin Nat. Hist. Society, in 1844 : the species was since dredged 

 there by Mr. M'Andrew, but not living. A Pinna dredged in Belfast 

 Bay, and now in Mr. Hyndman's cabinet, exhibits brownish-coloured 

 pearls of the same colour as the shell itself. Mr. Barlee includes P. fragilis 

 in his list of Birterbuy Bay shells, being the only note of Pinnce found 

 on the western coast, known to me. 



PinncE. Feb, Wh, 1848. 



Bernard Meenan sent me one dredged from 50 fathoms, off Island 

 Magee. It is thence the Pinnce are brought to Belfast ; a circumstance 

 of very rare occurrence, however. But B. Meenan states that he has at 

 various times seen many of them which were taken there ; being generally 

 broken more or less, they are not brought to Belfast. B. M. believes they 

 are taken by becoming entangled in the long lines, or by the line getting 

 within the valves, and the animal closing them upon it. 



Family Unionid^. 



Gejuis Anodon. 

 A. cygnea, Turton. 



The Anodon is known to me as found in suitable localities all over the 

 island, except in the extreme South. The Anodonta intermedia (Pfeiffer, 

 i. 113, t. 6, f. 3), I have obtained in the rejectamenta of the Lagan 

 Canal, near Belfast. Specimens from the Grand Canal near Dublin, 

 favoured me by Dr. Ball, are the A. cygnea, Pfeiffer, i. Ill, t. 6, f. 4 ; 

 and Rossmassler, fig. 342 ; and in Mr. Hyndman's collection is a very fine 

 specimen, 3^^ inches long and 6| broad, from the Moyntaghs, Co. Armagh. 

 From the Grand Canal also, and the river Shannon, I possess specimens 

 of the A. avatina, Pfeiffer, i. 112, t. 6, f. 2 : and from this last locality, 

 likewise, I have the A. cellensis, Pfeiffer, i. 110, t. 6, f. 1, and Ross- 

 massler, fig. 280. Of this last I have had the advantage of a comparison 

 with English specimens, kindly sent me by Mr. Alder, and named A. 

 cellensis, Pf. From the Anodon varying so much, not only according to 

 locality, but in the same waters, I cannot coincide with the authors who 

 make so many species. The four forms here noticed I venture with Mr. 

 Gray to consider but one species : of the Irish specimens, which I have 

 critically compared, none exactly agree with the A. ventricosa or A. pon- 

 derosa of Pfeiffer. W. R. Wilde, Esq., of Dublin, informs me that A7io- 

 dotis are thrown up in quantities on the shores of Lough Schur, County 

 Leitrim, where they are eaten by the peasantry. S/iggann is the com- 

 mon name applied to the Anodon in the North of Ireland. 



Anodons. Mr. Evatt of Mount Louise, Monaghan, tells me that they are 

 common in all the lakes there. At Clew Lough (Co. Monaghan) when 

 drawing his net for trout, he has taken as many — and to his annoyance — as 

 a man could carry, or Avhat would fill three or four stable buckets. 



Anodo?is, from Maghery Ferry, 1849 and 1850. 



