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 aztediluvianus 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. concimnus, 1 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 tothe middle eocene species, and I propose to distinguish it as 
C. Lamarckit. 
Stze.—Axis, 1 inch and 7-12ths (40 millim.); diameter, 9-12ths of an inch, nearly 
(18 millim.). 
Localities.—Bracklesham Bay, Bramshaw. /rench—Parnes, Mouchy, Courtagnon 
(fide Desh.); Vaudancourt, Hermes (fide D’Oré.). 
No. 128. Conus concinnus, Sowerby. Tab. XXIV, fig. 13 a—e. 
Conus concrnnvs, Sow. 1821. Min. Con., vol. ii, p. 180, t. 302, fig. 2. 
— — Morr. 1843. Cat. Brit. Foss., p. 142. 
— — D’ Orb. 1850. Prod. de Paléont., vol. ii, p. 356, No. 337. 
Nec — — Phil. 1846. Tert. Foss. Magdeb. (Palzeont., vol. i, p. 80, No. 183). 
nec — _— Beyr. 1853. Die Conchyl. des Norddeutse. tertiarg., vol. i, p. 21, t. 1, 
fig. 2. 
C. testa elongato-turbinatd, levi, ad basin concentrice sulcatd ; spird elevata, sub-conica : 
anfractibus angustis, sub-planis, angulatis, ad angulos nodulosis ; marginibus posticis 
declivis, duas vel tres lineas elevatas granulatas gerentibus, ad suturas marginatis, plicatis 
vel moniliferis : apertura angustissimd ; labro valde arcuato, postice late emarginate. 
Var. B. 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 
either plicated or furnished with a single row of rather small bead-like nobs; the space 
