196 EOCENE MOLLUSCA. 



the so-called C. antediluvianus of the Paris basin with the English C. concinnus, retaining 

 for them the name of the latter. It is obvious that the name antediluvianus belongs to 

 the Sub-apennine shell, and cannot be applied correctly to the French eocene species; 

 and the attempts of MM. Bronn, Nyst, and others to remove the difficulty by giving a 

 new name to the Italian species, can but increase the confusion. Dr. Beyrich, who 

 fully appreciated the specific distinctness of the forms, has observed (' Die Conchyl.,' 

 &c, p. 20), that " there will not be any necessity for a new name for the older eocene 

 species of the Calcaire Grossier if the union proposed by Bronn be adopted." In the 

 description of C. concinnus, I have stated the characters in which I consider that 

 species to be perfectly distinct ; and it is a cone which, although recorded by Mr. 

 Sowerby as occurring at Barton, is, I believe, peculiar to the older eocene strata, 

 and cannot be associated with the present species. It becomes necessary, therefore, 

 to give a new name to the middle eocene species, and I propose to distinguish it as 

 C. Lamarckii. 



Size. — Axis, 1 inch and 7-12ths (40 millim.) ; diameter, 9-12ths of an inch, nearly 

 (18 millim.). 



Localities. — Bracklesham Bay, Bramshaw. French — Parnes, Mouchy, Courtagnon 

 (fide Desk.); Vaudancourt, Hermes (fide D'Orb.). 



No. 128. Conus concinnus, Sowerby. Tab. XXIV, fig. 13 a — c. 



Conus concinnus, Sow. 1821. Min. Con., vol. iii, p. 180, t. 302, fig. 2. 

 — — Morr. 1843. Cat. Brit. Foss., p. 142. 



jyOrh. 1850. Prod, de Pale'ont., vol. ii, p. 356, No. 337. 

 Nee — Phil. 1846. Tert. Foss. Magdeb. (Palaeont., vol. i, p. 80, No. 183). 



nee — — Beyr. 1853. Die Conchyl. des Norddeutsc. tertiarg., vol. i, p. 21, t. 1, 



fig. 2. 



C. testa elongato-turbinatd, Icevi, ad basin concentrice sulcata ; spird elevatd, sub-conica : 

 anfractibus angustis, sub-planis, angulatis, ad angulos nodulosis ; marginibus posticis 

 declivis, duas vel tres lineas elevatas gramdatas gerentibus, ad suturas marginatis, plicatis 

 vel moniliferis : aperturd angustissimd ,- labro valde arcuato, postice late emarginato. 



Var. /3. Testa spatiis inter suturas et angulos anfractuum tres vel quatuor lineas elevatas 

 simplices gerentibus. 



Shell elongate, turbinate, concentrically furrowed at the base ; spire elevated, but 

 variable in height, sometimes nearly equalling a half, sometimes not much exceeding a 

 third part, of the whole length of the shell : whorls seven or eight, exclusive of the 

 pullus, very narrow, nearly straight on the sides, angulated at the shoulders, with the 

 posterior margins slanting backwards ; the edges round the suture thickened, and 

 cither plicated or furnished with a single row of rather small bead-like nobs ; the space 



