GENUS DOLIUM. 
=} 
3. DOLIUM GALEA, Lam. The Fluted Tun. 
(Collect. Mass. Liam.) Lasv., Conch., t. 898, fig. 18. 
Pi. II, fig. 2. 
D. testa maxima, ovato-globosd, ventricosissimaé, umbilicata, tenui, 
albido-fulva ; costis convexis, anteritis alternis minoribus; anfractibus prope 
suturas incurvato-excavatis, canaliculatis. 
Shell often very large, ovate-globose, pretty light, very 
ventricose, ridged transversely with numerous convex ribs, al- 
ternated by other smaller ribs, which only appear upon the 
two upper thirds; the furrows which separate them are very 
distinct. Suture channeled ; spire slightly raised, formed of 
six rounded convex whirls; the lower one forms, of itself, 
almost the whole of the shell. ‘The aperture, very large, 
of a clear fawn color within, exhibits smooth tranverse ribs, 
the first seven or eight of which, are united two and two. 
The right lip is white, terminated by a festooned dilatation, 
and sometimes excavated by a shallow canal. ‘The left lip, 
when apparent, consists only of a scale-like leaf. ‘The colu- 
mella is twisted, and elongated spirally ; it is projecting, mark- 
ed externally with five or six longitudinal ribs, and continued 
to the emargination. ‘The whole surface of the shell is of a 
pale fawn-color, intermingled, upon some specimens, with 
light brown or chestnut tints. Epidermis very thin and 
brown. 
Length 6 inches. Width 42 inches. 
Inhabits the Mediterranean, about the coasts of France, 
and of Corsica; and the Adriatic. 
It is this species particularly, among the Tuns, which acquires 
such magnitude, that specimens have been quoted of the size of 
a man’s head. It is found in calcareous, and sometimes on 
slightly muddy bottoms. It is generally observed upon coasts, 
like the preceding, at the approach of spring or of summer. 
