DESCRIPTION OF SHELLS. a7) 
aperture narrow, pointed at both ends, its lip extended beyond the apex ; striz 
obscure in the middle of the whorl, deep at the base. 
Length 2, width 1. 
The umbilicate columella seems to distinguish this from almost all other 
fossil Bulle. Mr. Edwards’s Cabinet. 
Fig. a, natural size; 6, magnified. 
Bulla lanceolata. (Tab. VII. fig. 7.) 
Spec. Cuar.—Acutely conical with a produced base, smooth, except a few 
strie near the pointed apex and six or seven near the base; aperture very 
narrow, its lip extended beyond the apex and slightly expanded and reflected at 
the base. 
Length 23, width 1. 
Beautifully formed and polished: this is a remarkable little shell; it occurs 
in great numbers at Barton, but less frequently at Bracklesham. 
Fig. a, natural size; 6, magnified. 
Bulla uniplicata. (Tab. VII. fig. 8.) 
Spec. Cuar.—Cylindrical, smooth; apex deeply sunk ; base striated ; aper- 
ture narrow, its inner lip forming a double plait as it rises upon the columella. 
Length 23, width 1. 
Much resembling B. cylindrica, but differing in the columella. It is in Mr. 
Edwards’s Cabinet. 
Fig. a, natural size ; b, magnified. 
Globulus labellatus. (Tab. VI. figs. 26 & 27.) 
Fig. 27 represents a distorted variety. The thick left lip so much resembles 
that of a Natica, that the genus has been doubted. 
Globulus conoideus. (Tab. VI. fig. 32.) 
Spec. Cuar.—Spire conical, short, of four or five whorls which have a narrow 
depression on their upper edges ; aperture nearly orbicular with a sinus formed 
by the spire, half as long as the shell ; umbilicus large. 
Strongly resembling G. labellatus, but shorter, and having the upper parts of 
the whorls a little flattened on their sides so as to make the spire conical. 
