172 PLIOCENE MOLLUSCA. 



equal width ; spire very sliort ; mouth ovate, angulate al)ove, more tliau half the 

 length of the shell ; outer lip expanded ; canal short, turning to the left. 



Dimensions. — L. 50 mm. B. 28 mm. 



Bistrihntion. — Pecent : Behring Sea, Banks of Newfoundland. 



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

 stow. Butleyan : Butley. 



Pleistocene : Bridlington. 



Bemarks. — This species has not hitherto been noticed in the Crag, though 

 Wood figured a Bridlington shell which he referred to it with some doubt. There is 

 a specimen of what seems the same from Butley, and another from the New- 

 bournian Crag of Pelixstow in the Wood collection at the Norwich Museum. I 

 have found a third, imperfect, at Oakley. The two last correspond with Wood's 

 figure, and with a Recent shell in the British Museum, the Butley specimen 

 resembling more nearly Gould's drawing of the American form except that the 

 spire is somewhat longer and the spiral stria? more prominent. G-ould reports 

 this species from the Newfoundland fishing grounds, but I am not aware that it 

 now lives on this side of the Atlantic. It furnishes another instance of the con- 

 nection between the Crag fauna and that of the coasts of North America at the 

 present day. 



Neptunea castanea (Morch). Plate XVIII, fig. 



/. 



1857. Fnsus (Folutopsim) casfaneus, Mureh, Vid. Medd. Naturli. Foreii. Kjob., p. 341. 



1858. Neptunea castanea, Dunker, Nov. Couch., p. 7, pi. ii, figs. 1, 2 {N. hadia in plate). 



1880. Fusus castaneus, Gr. B. Sowerby, Thes. Conch., vol. iv (Fusus), p. 90, pi. xi, fig. 128. 



1881. Neptunea castanea, Kobelt, Martini und Chemnitz, Conch. Cab., ed. 2, pt. iii (Purpuraceae), 

 p. 60, pi. ix, figs. 4, 5. 



Specific Characters. — Shell ovato-fusiform, thick and strong; whorls 0, but 

 slightly convex, regularly tapering, the last two-thirds the total length ; apex 

 obtuse ; suture well-marked but not deep ; ornamented by fine spiral lines, closel}^ 

 crowded together, and by flexuous and irregular lines of growth ; mouth large, 

 oval, angulate above, more than half the length of the shell; columella l)ut 

 little excavated ; outer lip regularly curved, not expanded ; inner lip forming 

 a thin glaze upon the pillar ; canal short, open. 



Dimensions. — L. 85 mm. B. 45 mm. 



Distribution. — Recent: west coast of North America: Sitka, Alaska, Siberia. 

 Fossil: Newbournian Crag: Felixstow. 



Remarks. — I have one or two specimens from Felixstow, which closely 

 correspond with the figures of N. castanea given by the authors quoted above, 

 and with some Eecent shells in the British Museum (Natural History). They 



