MARSNALL : ON THE BRITISH SPECIES OF BUCCINUM, FUSUS, ETC. 49 



A good many outlying members of this genus have been dredged 

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

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

 pine," expeditions, including F. delicatu^, Jeffr., F. hirxutux Jeffr F. 

 lachesis, Morch, F. sarsii, Jeffr., F. mbim, Gray, F. cominnus, Jeffr., F. 

 turgidulus, Jeffr., F". togatus, Morch, and F. moehii, Dunk, and Metz. 

 But it should be noted as a significant fact that the discoverer and 

 author of most of these species did not attempt to claim for them a 

 British origin. 



To the foregoing may be added another species, closely allied to 

 F.attenuafus, Jeffr., (') which was trawled in 1S97 by an Aberdeen steam- 

 trawler "on the north side of the Shetland-Faroe Channel, on a small 

 bank 60 to 70 fathoms deep, with vcr)' deep water on either side," and 

 which I propose to name F. eonsimilis, n.sp. With two exceptions, it 

 agrees in every respect with Gwyn Jeffreys' description of i^. attenuatus, 

 so closely indeed as to suggest at first that those two exceptions may 

 possibly be reconciled if more specimens come to hand ; but one of 

 them is fundamentally distinct. Gwyn Jeffreys writes that the spire of 

 F. affenuafm tapers " to a very blunt and regularly spiral point, which 

 is not mammillar nor twisted," while my specimen has a twisted and 

 bulbous apex wider than the following whorl, and similar to that of F. 

 idawlicus, but not stiliform. He also describes the canal as "straight," 

 while in my shell it is much curved. All the other characters given to 

 F. attenuatus may be applied to this species — shape, size, measurements, 

 sculpture, epidermis, colour, etc. This specimen came into the hands 

 of Mr. James Simpson of Aberdeen, who generously gave it to me. F. 

 attenuatus, Jeffr., is a very rare species, only one living and two dead 

 adult specimens having been dredged by the" Valorous" in mid- Atlantic, 

 and by the "Porcupine" in the Atlantic off Ireland, while no figure of it 

 has yet been published. The correct " Porcupine" localities for F. atten- 

 uatus are S. W. Ireland off Cape Clear 1207 f, and N. W. Ireland off 

 Rockall 121 5-1 380 f., and not those recorded in error by Gwyn Jeffreys. C-^) 

 A specimen of F. roncinnus, Jeffr., (•'') was found some few years 

 ago on an Aberdeen trawl-boat by Mr. J. Simpson. It was an adult 

 example, perfect but dead. The species was described by the author 

 from a single specimen dredged by the " Triton," in the Shetland-Faroe 

 Channel, in 608 f., but this specimen more probably came from the 

 deep-sea fishing-grounds 70 miles east of the Shetlands, as trawlers 



(i) Proc. Roy. Soc, vol. 18, p. 434, 1870, name only ; and Ann. Mag. N. Hist. 1877, (mis- 

 printed 1876 in private copy), p. 326. 



(2) Moll. "Valorous" Exp., Ann. Mag. N. Hist., 1877, p. 326. 



(3) Moll. " Triton" Exp., Proc. Zoo\. Soc, 1883, p. 397, pi. xliv, figs. 8, 8a, 



