TORNATELLIDA. 357 
Shell turbinate, more or less involute, last whorl usually higher 
than the spire, with a flattened narrow solid edge along the 
suture; aperture semieffuse, anteriorly rounded, inner lip thick- 
ened, especially in front, and provided with three oblique folds, 
GLoBiconcHA, d’Orb. 
Distr.—6 sp. Cretaceous; France. G. coniformis, Rimer 
(Ixxxviii, 52). G. Fleuriausa, V’Orb, (1xxxviii, 53). 
Shell globular-conic, spire short, or involute; aperture narrow, 
crescent-shaped; margin acute; columella not thickened or 
plaited. 
TyLostoMaA, Sharpe, 1849. 
Etym.— Tulos, a eallosity, stoma, mouth. 
Distr.—4 sp. lL. Cretaceous rocks; Portugal. 7. torrubizx, 
Sharpe (Ixxxviii, 54). 
Shell ventricose, smooth or punctate-striate, spire moderate, 
aperture ovate-lunate, pointed above, rounded in front; outer 
lip periodically (once or twice in a whorl) thickened inside and 
expanded, rising slightly; inner lip callous, spread over body- 
whorl. 
Stoliczka refers this genus to Naticide ; its true affinities are 
difficult to ascertain. 
VARIGERA, d’Orb. Shell with lateral varices. 7’. Rochatiana, 
d’Orb. (Ixxxviii, 55). Cret.; France. 
Suspramity RINGICULING. 
The shells resemble Actzon except that they have the margins 
of the aperture strongly thickened and externally varicose, the 
canal is twisted or plaited, and always terminates anteriorly with 
a distinct fold, in front of which there is a groove or kind of 
canal in the thickened margin. The other genera proposed may 
well be considered subgenera of Ringicula. 
Rinaicua, Desh. 
Etym.—Diminutive of ringens, from ringo, to grin. 
Syn.—Aptycha, Meek. 
Distr.—T5 sp., the recent ones in all warm seas. Fossil. 
Miocene—. R&. buccinea, Desh. (1xxxvii, 29). 
Shell minute, ventricose, with a small spire; aperture notched, 
columella callous, deeply plaited; outer lip thickened and 
reflected. é 
RINGINELLA, d’Orb. Shell oval, with revolving punctate strie ; 
aperture entire, without channel; outer lip strongly thickened ; 
inner lip thickened, with anterior plications. Several cretaceous 
species. L&. clementina, d’Orb. (1xxxviii, 57). 
ERIPTYCHA, Meek. (Euptycha, Meek, preoccupied). Shell 
globose, aperture very narrow, one strong, often bifid anterior 
