SIPHO .1EFFREYSIANUS. 373 



Sipho Jeffreysianus (Fischer). Plate XXIV, figs. 3, 4; Plate XXXVIII, fig. 12. 



1892-7. Neptunea Jeffreysiana, Locard, Coq. mar. Cotes de France, p. 110, 1892 ; Exped. scient. du 



Travailleur et du Talisman, vol. i, p. 360, 1897. 

 1914. Sipho Jeffreysianus, F. W. Hanner, Plioc. Moll. Gt. Brit., pt. i, p. 196, pi. xxiv, figs. 3, 4. 



Distribution.— Fossil : (additional) Isle of Man, Wexford. 



Remarks. — I am sorry to find that in the legend to my PL XXIV, the numbers 

 referring to the two figures of this species were accidentally reversed ; the Oakley 

 specimen should be fig. 3, and not 4 ; the recent one fig. 4, and not 3. 



The present species is not very rare in the Wexford gravels. 



Sipho menapiae, var. hibernica (A. Bell). Plate XXIII, fig. 17. 



1914. Sipho menapise, var., F. W. Harmer, Plioc. Moll. Gt. Brit., pt. i, p. 186, pi. xxiii, fig. 17. 



1915. Sipho hibernicus, A. Bell, Geol. Mag. [6], vol. ii, p. 167. 



Varietal Characters. — Differs from the type in size, in its elongate spire and its 

 somewhat more convex whorls. 



Dimensions. — L. 50 mm. B. 22 mm. 



Distribution. — Not known living. 



Fossil : Wexford, Isle of Man. 



Remarks. — In the first part of the present Memoir I figured some closely allied 

 but somewhat different shells under Mr. Bell's name of Sipho menapiae, one of 

 which (PI. XXIII, fig. 17) is larger and much longer in the spire than the others, 

 the whorls being rather more convex. In a recent paper Mr. Bell has recorded 

 this as specifically distinct, under the name of S. hibernicus. The Siphos of this 

 group in my collection from Wexford vary considerably, however, some of them 

 being of a more or less intermediate character, and I am, therefore, inclined still 

 to group them with S. menapiae, adopting Mr. Bell's name hibernica as varietal 

 for the elongate form. 



Sipho islandicus (Chemnitz). Plate XX, figs. 1,2; Plate XXXVIII, figs. 5—8. 



1887. Neptunea islandica, Kobelt, Icon, schalentrag. euro p. Meeresconch., vol. i, p. 71, pi. xiii, fig. 2. 



1890. Fusus islandicus, A. Bell, Rep. Brit. Assoc. (Leeds), pp. 410, 423. 



1892. Neptunea islandica, Locard, Coq. mar. Cotes de Frauce, p. Ill, fig. 99. 



1910-15. Sipho islandicus, Odhner, Archiv Zool., K. Svenslc. Vet.-Akad., vol. vii, no. 4, p. 24, 1910 ; 



K. Svensk. Vet.-Akad. Handl., vol. liv, p. 203, 1915. 

 1914. Sipho islandicus, F. W. Harmer, Plioc. Moll. Gt. Brit., pt. i, p. 187, pi. xx, figs. 1, 2. 



Distribution. — Fossil : (additional) Wexford gravels, western Hebrides. 

 Remarks. — To the fossil localities for this species given on p. 187 may be added 



