196 PLIOCENE MOLLUSCA. 



Specific Gharacfers. — Shell rather thin; whorls but slightly convex, gradually 

 tapering ; apex obtuse, regularly spiral ; ornamented by very fine and incon- 

 spicuous strias extending to the base of the shell ; suture narrow, channelled ; 

 mouth oblong-oval, angulate above ; canal short and wide, turning to the left ; outer 

 lip rounded, but slightly projecting, edge sharp and thin ; inner lip forming a thin 

 glaze ; pillar curved, angulated at the commencement of the canal. 



Diinensio7is. — L. 35 mm. B. 15 mm. 



Distribution. — Recent : British and Irish coasts. Cattegat, Finraark to Gulf of 

 Gascony. 



Fossil : Waltonian Crag : Walton, Little Oakley ; probably else- 

 where in the Red Crag. Wexford (Sir H. James). Isle of Man. 



Pleistocene : Aberdeenshire, Gamrie, King Edward, Lochgilphead, Worden. 

 Bridlington. 



BemarJcs. — As before stated Wood figured several fossils from the Crag as 

 Troplion 'propinquiis, but they hardly correspond with the typical 8. proplnquus of 

 British seas. Many years ago I received from the late Dr. Gwyn Jeffreys an 

 example of this species from the Dogger Bank, which I now figure, together with 

 a shell from Oakley with Avliich it appears to agree. 



Sipho Jeffreysianus (Fischer). Plate XXIV, figs. 3, 4. 



1867. F'tisus bucciuatus, Jeffreys, Brit. Couch., vol. iv, p. .340. 



1868. Fiisus Jeffreysianus, Fisclier, Jouru. de Couch., vol. xvi, p. 37. 



1869. Fusus Jeffreysianus, Jeffreys, Brit. Couch., vol. v, p. 219, pi. Ixxxvi, fig. 4. 



1870. Fusus Jeffreysianus, A. Bell, Auu. Mag. Nat. Hist. [4], vol. vi, p. 214. 



1881. Neptunea (Sijjho) Jeff'reysiana, Kobelt, Martiui uud Chemuitz, Conch. Cab., ed. 2, vol. iii 



(Purpuracese), p. 80, pi. xxv, fig. 7. 

 1890. Neptunea Jeff'reysiana, Carus, Prod. Faun. Medit., vol. ii, p. 400. 



Specific Characters. — Shell differing from S. propinquus in being larger, more 

 ventricose and solid, having a conical and shorter spire ; whorls but slightly convex, 

 the last nearly three-foui'tlis the total length ; ornamented by fine, rather indis- 

 tinct spiral striations which are somewhat stronger on the back of the canal ; apex 

 obtuse, regularly spiral ; mouth oval, angulate above ; canal short, open, turning 

 to the left. 



Dimensions. — (Of the Crag specimens.) L. 50 mm. B. 25 mm. 



Distribution. — Recent : coasts of Ireland, southern England and western 

 France, Gulf of Lions (Jeff"reys). 



Fossil : Waltonian Crag : Little Oakley. Newbournian : Wal- 

 dringfield, Sutton ; probably elsewhere in the Red Crag. 



Remarks. — S. Jeffreysianus, a British shell with a southern range, resembles 

 the S. eurtvs group in form, except that the whorls are flatter and the spire is 



