198 EOCENE MOLLUSCA. 
No. 129. Conus sScABRICULUS, Solander. Tab. XXIV, fig. 9 a—e. 
Conts scaBRicuLus, Sol. 1766. Brand., Foss. Hanton., p. 15, t. 1, fig. 21. 
_ _— Sow. 1821. Min. Con., vol. iii, p- 180, t. 303, figs. 1, 2. 
— — Desh. 1824-37. Deser. des coq. foss., &e., vol. li, p. 751, t. 98, 
figs. 17, 18. 
—_ —_ Jb. 1845. Lam., Hist. Nat., 2d edit., vol. ii, p. 158, No. 11. 
— —_ D’ Orb. 1850. Prod. de Paléont., vol. ii, p. 416, No. 1472. 
non — _ Stsm. 1847. Syn. Meth., &c., Pedemont. foss., p. 44. 
C. testé utrinque conicd, antice sub-productd, lineis concentricis, elevatis, ornatd ; spird 
elevatd, acuminata ; lineis concentricis acutis, denticulatis, aliquando confertis, aliquando 
distantibus ; alternis sepissime minoribus, sepe inermibus : anfractibus planis, postice obtuse 
angulatis ; marginibus sub-concavis, ad suturam granulosis: apertura lineari, angustd, bessem 
totius teste paullum superanti ; labro tenurssimo, leviter arcuato, postice sinuoso. 
Shell oblong, doubly conical, slightly produced at the base, and ornamented with 
concentric raised lines; spire elevated, pointed, terminating in a very small conical 
pullus, formed of three smooth volutions. The concentric lines are sharp, and very 
variable in their character; sometimes numerous, sometimes distant, and very fre- 
quently the alternate lines are smaller than the others. Most generally the concentric 
lines rise, at regular intervals, into short, tooth-like tubercles, having their bases 
prolonged, both in front and behind, into short, rounded ribs, more or less prominent 
according to the size of the tubercles, and separated by deep, pit-like hollows. The 
whorls, exclusive of the pullus, are six or seven in number, flat at the sides, slightly 
contracted towards the base, obtusely angulated at the shoulder, longitudinally ridged 
by regular conspicuous lines of growth, and bordered at the suture by a row of small 
granulations ; the space between the shoulder and the suture is traversed by two or 
three smooth, prominent lines. The aperture is straight, narrow, slightly emarginate 
in front, and in length, rather more than two thirds of the whole shell; the outer lip 
is smooth within, thin, sharp on the edge, of a flattened elliptical form, and separated 
from the preceding whorl by a moderately wide, but not deep, sinus. The columella 
is slightly curved inwards. 
Not infrequently, the alternate smaller lines, where they do occur, are smooth 
and simple; and the same character sometimes, although very rarely, distinguishes 
the whole transverse lineation. In the latter instances the surface of the shell between 
the raised lines is flat and smooth, except where it is ridged by the lines of growth. 
This pretty and well-marked species is, apparently, confined to the middle eocene 
strata; and the shells referred to it by Sismonda, from Piedmont and Turin, are 
considered by M. D’Orbigny to belong, in fact, to Michelotte’s C. ornatus. 
Size. —Axis, 4-5ths of an inch; diameter, rather more than 3-10ths of an inch. 
Localities. —Barton. French—Monneville (fide Desh.), Chavangon (fide D’ Oré.). 
