228 JOURNAL OV CONCHOLOGV, VOL. I3, NO. 8, OCTOBER, I9II. 



dredged by the 'Porcupine' 50 miles west of the Shetlands in 203 f., 

 and north of Scotland in 290 f (Jeffreys), but which does not differ, 

 except in texture, from var. solida G. O. Sars.^ 1 have two specimens 

 that may pass for either of these varieties, one from the Shetlands and 

 the other from the Doggerbank. All three varieties gradually merge 

 from the type, and are only the extreme forms common to all the 

 Fusus family, and indeed to all univalves. 



F. fenestratus Turt. — This has hitherto been considered a very 

 rare species. It lives in deep water, far from the coast, and has never 

 been taken in private dredging except in one instance, a young speci- 

 men from the Minch in 72 f. (J. T. M.); S. of Ireland no f. (E. A. 

 Smith); S. W. Ireland 50 f. (R. I. A. cruise) ! Channel slope 539 f., 

 off Cape Clear 180 f., S. of Ireland 725 f , and ^V. of Ireland 90 f. 

 ('Porcupine'); off the Butt of Lewis 530 f. ('Knight Errant'); Shet- 

 land-Faroe Channel 530 f. ('Triton'); off the Butt of Lewis 545 f., 

 midway between the Shetlands and Norway 197 f., and off the 

 Faroes 71 f. (Simpson) ! It was also dredged by the ' Porcupine' off 

 the coast of Portugal in 220 f. Since 1892 specimens have occasion- 

 ally been dredged in the west and south of Ireland, in company with 

 Buccinopsis dalet, by the Irish Fishery Board. Two or three speci- 

 mens have also been trawled in recent years between the Pembroke- 

 shire and Waterford coasts ; one of these is 2;J-in. in length, and has 

 seven whorls besides the apical ones ; but for many years previously 

 the only specimens known had their source from old Mr, Humphreys, 

 the dealer, of Dublin, who obtained altogether during his career eight 

 specimens, one of which is in my collection. It has also been 

 recorded from Saddell, Clyde, 47 f, in the Scottish Fishery Board 

 Report for 1897, but in view of the various mistaken records which I 

 have cited from those Reports (and there are others which I have 

 not cited) the identity of the species requires confirmation. My young 

 specimen from the Minch has only 3^^ whorls, but is interesting as 

 showing the embryonic sculpture, which is usually worn down in the 

 adult. The first whorl is quite smooth, the second has spirals only, 

 and the third initiates the longitudinals and spirals which characterise 

 the adult. Gwyn Jeffreys gives an excellent figure, but Sowerby's is 

 not like. 



A good many outlying members of this genus have been dredged 

 between the Hebrides and Shetlands and the Faroes, as well as in the 

 Atlantic, by the 'Lightning,' 'Knight Errant,' 'Triton,' and 'Porcu- 

 pine ' expeditions, including F. delicaius Jeff., F. hirsutus Jeff., F. 

 lachesis Morch, F. sarsii Jeff, F. sabiiii Gray, F. concinnus Jeff., F. 

 turgidulus Jeff, F. togaius Morch, F. iiwebii Dunk, and Metz., and 



I Moll. Reg. Arct. Norv., p. 278, lab. 14, fig. 2. 



