484 GASTEROPODA OF THE INFERIOR OOLITE. 
or by Hudleston and Wilson. Quite recently the Brodie Collection of fossils 
from the Leckhampton Freestones has been acquired for the Jermyn Street 
Museum. A specimen marked “ Turbo, n.sp., 34,” answers fairly well to Lycett’s 
description, so far as the whorls of the spire are concerned. This is evidently a 
Purpurina, and has some resemblance to the form on Pl. I, fig. 2, of this 
Monograph. 
438. BracuytreMa Pontonts, sp. nov. Plate XLII, figs. 21a, 21d. 
Description : 
Height : : : : 8) Amin. 
Spiral angle : : 5 165%: 
Shell thick, trochiform, imperforate. The spire and body-whorl are nearly 
equal in height, and the spiral angle perfectly regular. Number of whorls five or 
six, sutures well-marked; the spire-whorls carry three sub-nodular spiral bands. 
The body-whorl is large and bicarinate owing to the prominence of the second 
and third spirals; number of spirals in the base about five. 
The aperture is quadrangular with the columella considerably produced and 
slightly curved, and terminated at the point by a conspicuous reflexed notch 
or gutter. 
Relations and Distribution.—This curious shell has a strong resemblance to 
Littorina Phillipsii, except as regards the aperture. A single specimen from 
Great Ponton. 
439 2? Bracuyrrema “pRmeTeNuE.’? Plate XLII, figs. 24, 24d. 
Description : 
Height . : : : . omm. 
Spiral angle . : : pada 
Shell minute, conical-elongate, Sapertonaes There are about six whorls, flat 
and close, though the sutures are fairly distinct. The ornaments consist of fine 
spiral lines decussating with nodular longitudinal lines, slightly variciform. The 
body-whorl is about one-third the total height. Aperture subquadrate with a 
reflexed notch at the columellar extremity. 
Relations and Distribution.—More acute than any other species of Brachytrema, 
this might almost be regarded as a Cerithiwm, though the style of ornamentation 
connects it with Brachytrema. A single specimen from the Oolite Marl, 
Notgrove. 
