EUTHRIA CORNEA. 8(51 



ornamented by numerous closely-set flexuous costae which die out towards or upon 

 the body-whorl, and by fine unequal spiral costae with slight granulation at the 

 points of contact ; suture fairly deep ; spire elevated, regularly diminishing towards 

 an acute point; mouth small, oval, angulate above and below; canal long, narrow, 

 straight; outer lip thin, obliquely ridged externally. 



Dimensions. — L. 22 — 25 mm. B. 8 mm. 



Distribution. — Not known living. 



Fossil: Coralline Crag: Sudbourn, Gomer. Walton ian : Little 

 Oakley. 



He murks. — I figure two beautifully perfect specimens of this charming and 

 delicate shell, belonging respectively to the geological museums of Cambridge 

 and York. In the former the longitudinal costge die out before they reach the 

 body-whorl ; in the latter they extend to the top of the mouth. The artist in the 

 Monograph of the Crag Mollusca has hardly done justice to the beauty of this 

 shell. Oar fossils bear a superficial resemblance to the figure of Nyst's 

 F. Desha i/esii, 1 as pointed out by Wood, but differ materially from the shell figured 

 by Dr. Ravn 2 under that name, and still more so from a typical specimen from the 

 Middle Oligocene of Denmark which he has been kind enough to send me. 



Genus EUTHRIA, Gray, 1850. 

 Euthria cornea (Linne). Plate XXXVII, figs. 7, 8. 



1758. Murex corneus, Linne, Syst. Nat., ed. x, p. 754, no. 491. 



1856. Fusus corneus, Homes, Foss. Moll. Tert. Wien, vol. i, p. 280, pi. xxxi, fig. 3. 



1872. Euthria cornea and vars., Bellardi, Moll. Terr. Terz. Piem., pt. i, p. 190, pi. xiii, figs. 2, 3. 



1873-5. Euthria cornea, Seguenza, Boll. R. Com. Geol. Ital., vol. iv, p. 300, no. 163, 1873 ; vol. v, 



p. 276, no. 58, 1874 ; vol. vi, p. 280, no. 297, 1875. 

 1877. Euthria cornea, de Stefani e Pantiuelli, Bull. Soc. Malac. Ital., vol. iv, p. 94. 

 1882. Euthria cornea, Bucquoy, Dollfus et Dautzenberg, Moll. mar. Eouss., vol. i, p. 38, pi. vi, fig. 6. 



1885. Euthria cornea, S. V. Wood, Quart. Journ. Geol. Soc, vol. xli, p. 68. 



1886. Euthria cornea, Dollfus et Dautzenberg, Feuilles des jeunes Nat., Paris, vol. xvi, p. 103. 



1886. Fusus corneus, Kendall aud R. G. Bell, Quart. Journ. Geol. Soc, vol. xlii, p. 210. 



1887. Euthria cornea, Kobelt, Icon, schalentrag. europ. Meeresconch., vol. i, p. 118, pi. xv, figs. 5, 9. 

 1890. Euthria cornea, Cams, Prod. Faun. Medit., vol. ii, p. 401. 



1890-1904. Euthria cornea, vars., Sacco, Boll. Soc Geol. Ital., vol. ix, p. 233, no. 3125, 1890; 



Moll. Terr. Terz. Piem., pt. xxx, p. 34, 1904. 

 1890. Fusus corneus, C. Reid, Plioc Dep. Brit., p. 245. 



1897. Euthria cornea, A. Bell, Trans. Roy. Geol. Soc Cornwall, vol. xii, p. 139, pi. i, fig. 2. 

 1901. Euthria cornea, Cossmann, Ess. Paleoconch. compar., vol. iv, p. 118, pi. vi, fig. 24. 

 1901-7. Euthria cornea, Scalia, Atti Acead. Gioeu. Sci. Nat, Catania [4], vol. xiv, p. 14, no. 187, 1901 ; 



vol. xx, p. 36, no. 337, 1907. 



1 Coq. foss. Terr. tert. Belg., p. 502, pi. xl, fig. 3, 1843. 



2 Mem. Acad. Roy. Sci. Danemark [7], vol. iii, p. 324, pi. v, fig. 15, 1907. 



