420 PLIOCENE MOLLTTSCA. 



Distribution. — Recent : English Channel, south-west coast of Ireland. Medi- 

 terranean, West European. 



Fossil: Coralline Crag: Sutton (A. Bell). Waltonian: Little 

 Oakley. 



Pleistocene : Ficarazzi. 



Remarks. — The shell figured under the present name which I obtained at 

 Oakley, has been identified as C. Barleei by M. Dautzenberg, who has kindly sent 

 me a recent specimen for comparison. Wood considered this form to be a variety 

 of C, tubercularis as does M. Cossmann, but it has been more generally regarded as 

 specifically distinct. Jeffreys says it is not unlike G. metula but is more strongly 

 tuberculate and has a true canal, and that it may be distinguished from G. tuber- 

 cularis by its wider base, having no basal keel, some of its upper whorls being 

 finely striated in the line of the spire. It seems to be a rare southern form, 

 ranging from the Mediterranean to the English Channel and the western coasts of 

 Ireland. Wood reports it from the Coralline Crag of Sutton and I have found it, 

 as just stated, at Oakley. Except that Seguenza gives it from one locality of the 

 Sicilian Pleistocene it has not been recognised as a fossil, except in the English 

 Crag. Jeffreys states it was taken during the Porcupine Expedition at Station 9. 



Cerithiopsis tubercularis (Montagu). Plate XLI, figs. 20 — 21. 



1803-8. Murex tubercularis, Montagu, Test. Brit., pt. 1, p. 270, 1803 ; Suppl., p. 116, 1808. 

 1848-72. Cerithium tuberculare, S. V. Wood, Mou. Crag Moll., pt. i, p. 70, pi. viii, fig. 5, 1848 ; 



Cerithiopsis tubercularis, 1st Suppl., pt. i, p. 52, 1872. 

 1853. Cerithiopsis tubercularis, Forbes and Hauley, Brit. Moll., vol. iii, p. 365, pi. xci, figs. 7, 8. 

 1867-71. Cerithiopsis tubercularis, Jeffreys, Brit. Conch., vol. iv, p. 266, 1867 ; vol. v, p. 217, p. lxxxi, 



fig. 1, 1869 ; in Prestwich, Quart. Journ. Greol. Soc, vol. xxvii, pp. 143, 487, 1871. 

 1872. Cerithiopsis t ubercularis, A. and E. Bell, Proc. Gteol. Assoc, vol. ii, pp. 203, 213. 

 1873-5. Cerithiopsis tubercularis, Seguenza, Boll. R. Com. Geo!. Ital., vol. iv, p. 350, no. 225, 1873 ; 



vol. vi, p. 344, no. 425, 1875. 

 1874. Cerithium tuberculare, Van den Broeck, Ann. Soc. Roy. Malac. Belg., vol. ix, p. 356. 

 1878. Cerithiopsis tuberculare, de Stefani e Pantanelli, Bull. Soc. Malac. Ital., vol. iv, p. 160. 

 1880. Cerithiopsis tubercularis, Fontanues, Moll, plioc. Valk'e du Rhone, vol. i, p. 167, pi. ix, fig. 14. 

 1880. Cerithiopsis tubercularis, Dollfus, Esq.Terr.tert.Norinandie, p. 40. 

 1884. Cerithiopsis tubercularis, Bucquoy, Dautzenberg et Dollfus, Moll. mar. Rouss., vol. i, p. 204, 



pi. xxvii, figs. 1 — 4. 

 1886. Cerithiopsis tubercularis, Dollfus et Dautzenberg, Feuilles des jeunes Nat., vol. xvi, p. 105. 

 1890. Cerithiopsis tubercularis, Cams, Prod. Faun. Medit., vol. ii, p. 363. 

 1892. Cerithiopsis tubercularis, Locard, Coq. mar. Cotes de France, p. 117, fig. 105. 

 1895. CeritMopsis tubercularis and vars., Sacco, Moll. Terr. Tert. Piein., pt. xvii, p. 66, pi. iii, figs. 72, 



73, 74. 

 1901. Cerithiopsis tubercularis, Br^gger, Norges geol. Undemigelse, no. 31, pp. 561, 661, pi. xix, 



fisr. 2. 



