56 PLIOCENE MOLLUSCA. 



of the localities given above. The shell here figured is from Shottisham Creek, 

 and belongs to the York Museum. 



Columbella compta (Bronn). 



1831. Fusus comptus, Bronn, Italiens tert. Geb., p. 41. 



1875. Columhella compta, Seguenza, Boll. R. Com. Geol., vol. vi, p. 276. 



1890. Columbella (Thiarinella) compta, Sacco, Moll. Terr. Terz. Piem., pt. vi, p. 56, pi. ii, fig. 7-i. 



Specific Characters. — Shell subfusiform; spire acute; the upper whorls flat, the 

 lower ones convex, the last inflated, two-fifths the total length ; ornamented by 

 longitudinal costffi, compressed, and nearly straight, which do not reach the 

 striated base of the shell ; suture subcanaliculate ; mouth narrow ; outer lip curved, 

 plicate within. 



Dimensions. — L. 28 mm. B, 10 mm. 



Distribution. — Not known living. 



Fossil ; "VValtonian Crag : Walton-on-Naze. 



Miocene and Pliocene : Italy. Upper Pliocene : Sicily. 



BemarJcs. — This very distinct species was reported from Walton-on-Naze by 

 Messrs. Robert Bell and Kendall, but the specimen cannot now be traced. I have 

 not found it either at Beaumont or Oakley. Columhella compta is an Italian fossil, 

 ranging from the Middle Miocene to the Upper Pliocene. It is figured by Prof. 

 Sacco, and there are specimens of it in the Geological Museum at Turin. 



Columbella subulata (Brocchi). Plate II, figs. 11, 12. 



1814. Murex suhulatus, Brocchi, Concli. foss. subap., p. 426, pi. viii, fig. 21. 



1849. Columbella subulata, Bellardi, Mem. Ace. Sclent. Torino [2], vol. x, p. 238, pi. i, fig. 12. 



1856. Columbella suhulata. Homes, Fos. Moll. Tert. Wien, vol. i, p. 121, pi. ii, figs. 11 — 13. 



1874-5. Columbella subulata, Seguenza, Boll. E. Com. Greol., vol. v, p. 276, 1874; vol. vi, p. 276, 



1875. 

 1881. Columbella subulata, Nyst, Conch. Terr. Tert. Belg., p. 36, pi. iii, fig. 3. 



1890. Columbella (Tetrastromella) subulata, Sacco, Moll. Terr. Terz. Piem., pt. vi, p. 44, pi. ii, fig. 49. 

 1912. Columhella subulata, Tesch, Med. v. d. Rijks. v. Delfstoffen, pt. iv, p. 78. 



Specific Characters. — Shell turreted, elongate, smooth; whorls flat, the last two- 

 fifths the total length ; suture subcanaliculate ; base striated ; mouth quadrangular, 

 with a well-marked canal; outer lip denticulate within. 



Dimensions. — L. 12 mm. B. -1 mm. 



Distribution. — Not known living. 



Fossil : Waltonian Crag : Little Oakley. Newbournian : Sutton. 



Miocene : Vienna basin ; northern Italy ; south-western France. Pliocene — 



