212 PLIOCENE MOLLUSCA. 



I have obtained a single specimen at Oakley, Avliich, though imperfect and 

 probably immature, was identified without hesitation by M. Dollfus as Genotla 

 ramosa. It shows the characteristic form and nodular carinas of that species. 

 With my Oakley fossil I figure also a perfect example from the Miocene of 

 Touraine. This form has not been recorded hitherto from any Pliocene deposit ; 

 it may be regarded, I think, as extraneous to the proper fauna of the Crag. 



Genus PSEUDOTOMA, Bellardi, 1875. 

 Pseudotoma intorta (Brocchi). Plate XXVI, figs. 11 — 14. 



1814. Mnrex intortus, Brocchi, Conch, foss. Subap., vol. ii, p. 427, pi. viii, fig. 17. 

 1837. Pleurotoma Morreni, De Koniuck, Coq. foss. Basele, p. 21, pi. i, fig. 3. 



1843. Pleurotoma intorta, Nyst, Coq. foss. Terr. Tert. Belg., p. 509, pi. xli, fig. 2; P. Morreni, 

 p. 510, pi. xl, fig. 6. 



1847. Pleurotoma intorta, Bellardi, Mem. E. Accad. Sci. Torino [2], vol. ix, p. 544, pi. i, fig. 13. 



1848. Pleurotoma intorta, S. V. Wood, Mon. Crag Moll., pt. i, p. 53, pi. vi, fig. 4. 



1874. Pleurotoma intorta. Van den Broeck, Ann. Soc. Malac. Belg., vol. ix, p. 125. 



1875. Pleurotoma intorta, Seguenza, Boll. R. Com. Geol. Italia, vol. vi, p. 208, no. 177. 

 1877. Pseudotoma intorta, Bellardi, Moll. Terr. Terz. Piem., pt. ii, p. 214, pi. vii, fig. 10. 

 1881. Pleurotoma intorta, Njst, Couch. Terr. Tert. Belg., p. 47, pi. iii, fig. 11. 



1887. Pleurotoma intorta, Eavn, Kougl. Dansk. Vid. Selsk. Skrift. [7], vol. ii, p. 343. 

 1896. Pleurotoma intorta, Bernays, Bull. Soc. Beige Gcol., vol. x (Memoires), p. 128. 

 1912. Pleurotoma intorta, Tesch, Med. v. d. Eijks. v. Delfstoffen, iit. iv, p. 88, no. 220. 



Specific Characters. — Shell thick and strong, elongate, turreted, suljfusiform ; 

 whorls carinated, convex below, deeply excavated above, the last about two- 

 thirds the total length ; apex acute ; suture deep, well defined ; ornamented by 

 coarse oblique costse, nodulous on the keel, gradually dying out downwards, and 

 by conspicuous lines of growth ; mouth long, narrow, continuous to the base, 

 without any distinct canal ; outer lip angulated by the keel, with a small notch 

 above, where it joins the suture ; inner lip forming a thick glaze on the pillar, 

 which is slightly excavated above. 



Dimensions. — L. 35 — 85 mm. B. 15 — 32 mm. 



Distrilnifiou. — Not known living. 



Fossil: Waltonian Crag: Beaumont, Little Oakley. Newbournian: 

 Waldringfield, Sutton, Felixstowe.^ 



Oligocene : Belgium (Argiles de Boom), North Germany. Miocene : Belgium 

 (Bolderien), GTermany, Italy. Pliocene : Belgium — Diestien, Casterlien, Scaldisien, 

 Poederlien. Holland — Scaldisien. Lower Pliocene : Ligurian coast, Castelnuovo 

 d'Asti. Upper Pliocene : Livorno, Bologna; Sicily — Alta villa. 



' Wood rejjorted P. intorta from Butley, but this Mr. Bell thinks was a mistake. 



