CLATHURELLA LEUFROYI. 235 



purea, it is possible his figure may represent the latter species, the strong internal 

 denticulation of the outer lip, which is hardly that of C. Pliilherti, pointing in that 

 direction. In Italy the type form of the present species is only reported as fossil 

 from the Upper Pliocene and the Pleistocene. Whether it should be regarded 

 also as a Miocene species I must leave to those who have a more intimate know- 

 ledge of those deposits than I have. 



Clathurella Leufroyi (Michaud). Plate XXVIII, figs. 1 3—15. 



1828. Pleurotoma Leufroyi, Michaud, Bull. Soc. Liuu. Bordeaux, vol. ii, p. 121, pi. i, figs. 5, 6. 

 1836-44. Pleurotoma inflata, Philippi, Enum. Moll. Sicilise, vol. i, p. 197, pi. xi, fig. 24, 1836; 



P. lieufroyi, vol. ii, p. 165, 1844. 

 1848-72. Pleurotoma Boothii, S. V. Wood, Mon. Crag Moll., pt. i, p. 63, pi. vii, fig. 16, 1848 ; 



P. Leufroyi, 1st Suppl., pt. i, p. 206, 1872. 

 1853. Mangelia Leufroyi, Forbes and Hanley, Brit. Moll., vol. iii, p. 468, pi. cxiii, figs. 6, 7. 

 1867. Befrancia Leufroyi, Jefeeys, Brit. Conch., vol. iv, p. 366, pi. ixxxix, fig. 1. 

 1870. Befrancia Leufroyi, A. Bell, Jouru. de Conch., vol. xviii, p. 348, no. 292. 

 1873-5. Befrancia Leufroyi, Seguenza, Boll. R. Com. Greol. Italia, vol. iv, p. 298, no. 124, 1873 ; 



vol. V, p. 276, no. 41, 1874 ; vol. vi, p. 208, no. 195, 1875. 

 1877. Homotoma Leufroyi, Bellardi, Moll. Terr. Terz. Piem., pt. ii, p. 274. 

 1883. Clathurella Leufroyi, Bucqvioy, Dautzenberg et Dollfus, Moll. mar. Rouss., vol. i, p. 95, pi. xiv, 



figs. 3, 4. 

 1890. Clathurella Leufroyi, Sacco, Boll. Soc. Geol. Ital., vol. ix, p. 281, no. 4290. 

 1890. Clathurella Leufroyi, Carus, Prod. Faun. Medit., vol. ii, p. 427. 

 1901. Clathurella Leufroyi, Bi"0gger, Norges Geol. unders^gelse, vol. xxxi, p. 662. 

 1905. Clathurella (Leufroyia) Leufroyi, Kobelt, Icon, schalentrag. europ. Meerescouch., vol. iii, p. 365, 



pi. xcvi, figs. 4, 5. 

 1910. Peratotoma {Leufroyia) Leufroyi, CeruUi-Irelli, Palaeont. Ital., vol. xvi, p. 59, pi. v, fig. 46. 

 1912. Pleurotoma Leufroyi, Tesch, Med. v. d. Rijks. v. Delfstoffen, pt. iv, p. 90, no. 221. 

 1914. Peratotoma {Leufroyia) Leufroyi, CipoUa, Palaeont. Ital., vol. xx, p. 174, pi. xiv, fig. 24. 



Specific Characters. — Shell fusiform, turreted, fairly solid ; whorls 7 — 8, convex, 

 the last inflated, much the largest, three-fourths the total length ; ornamented by 

 strong but not very prominent longitudinal ribs, 18 — 20 on the body-whorl, curved 

 in correspondence with the lines of growth, and by numerous closely set spiral 

 ridges, alternately smaller towards the base, which cross the ribs and become 

 finely granulate where they intersect them ; suture deep ; spire short, rapidly 

 diminishing in size ; mouth oval, angulate above ; labial notch small but well- 

 marked, close to the suture, outer lip bevelled off to a thin edge, smooth inside ; 

 canal very short, rather wide. 



Dimensions.- — L. 17- — 20 mm. B. 7 — 9 mm. 



Distribution. — Recent -. southern and western coasts of Great Britain and Ireland, 

 but ranging as far north as the Orkneys and Shetlands. Bergen, Bohuslan. West 



