304 JOURNAL OF CDNCHOI.OGY, VOL. I3, NO. lO, APRIL, I912. 



P. nebula Mont. — Loch Inver 2^{., Sound of Sleat 45f., Aber- 

 deenshire. 



Var. abbreviata Jeff. — Torbay, Teignmouth, and Aberdovey. 

 L. o*3in., b. o"i25. 



Var. elongata Jeff. — Sanda Island i8f. (Knight) ! off Rattray 

 Head, Aberdeenshire (Simpson) ! Loch Boisdale 3of. There is also 

 another slender or elongated form having the length, colour, and 

 sculpture o( the type. 



Var. fusiformis Marsh., yc;«r;/. 0/ Conch., 1893, vol. vii., p. 262. — 

 Doggerbank 4of., the Minch 3of,, also dredged in the Shetlands by 

 the 'Porcupine' Expedition of 1869. In this variety, which is also 

 elongated, the last whorl is considerably more than half the shell ; in 

 the var. elongata the spire is the larger half. The Doggerbank 

 specimens have the ribs nearly obliterated. 



Gwyn Jeffreys has not correctly described the sculpture of P. nebtila. 

 The spiral striae are usually unequal in size, especially on the last 

 whorl, every third spiral being more prominent than the intervening 

 two, and the third whorl has five rows of reticulated striae. Specimens 

 from Scilly have the coloration and finer sculpture pertaining to the 

 var. elongata. Sowerl:)y's is the best typical figure ; Jeffreys' is a more 

 slender form. 



P. laevigata Phil. — Scilly, a single specimen (Smart) ! 



Var. minor Jeff.— Tenby (Span) ! Portstewart, Antrim (Knight) ! 

 Shellness, Connemara, Achil Island, Killala Bay, and Bundoran. 

 L. o'o4in., b. o"oi. 



The record of this species for Loch Fyne^ is almost certainly a 

 mistake. And in this connection I may remark that the record for 

 Cardium papillosum, also from Loch Fyne, published in the same 

 Report (p. 116) is an error ; I have seen the shell, and it is a young 

 specimen of C. edule. In the same category, from another of these 

 Reports, must be placed Cardium islandiaan, from Campbelltown 

 Loch (perhaps a mistake for Cypriua islandica, or for the young of 

 C. echinahan, which it resembles); Pkurotoma carinata, Donovania 

 viininia, &c., all from the Clyde. 



Tlie only known habitat for P. hvvigafa was Guernsey, where it is 

 now either extinct or dying out. Belgrave Bay in that island has 

 undergone a great change since Mr. Gallienne collected them there 

 more than forty years ago, and owing to a custom of allowing rubbish 

 and ballast to be discharged, molluscan life generally has dwindled to 

 very meagre proportions in that bay, P. Icevigaia being now almost if 

 not quite exterminated. During many visits to the island and 

 numerous searches, I could only find an occasional dead specimen, 



I Scott : Ann. Rep. Scott. Fish. Bd. 1897, part iii., p. 118. 



