298 GASTEROPODA OF THE INFERIOR OOLITE. 
Shell conical, spire acute; whorls five or six, flat and well separated by the 
suture. The ornaments consist of three rather finely granulated spirals of equal 
prominence, with widish interspiral sulci where the axial ornamentation is well seen. 
Body-whorl subangular, with five plain spirals in the base ; aperture subovate. 
N.B.—The figured specimen has suffered considerably from usage. 
Relations and Distribution—Despite the very considerable difference of 
appearance, this is probably the representative in the Lincolnshire Limestone of 
shells not far removed from Littorina sulcata. Its perfectly conical form and 
freedom from turriting seems to distinguish Litt. Weldonis from Amb. gemmata 
or Litt. xdilis. 
Rather abundant in the upper beds of the Lincolnshire Limestone. 
233. Lirtorina mpiLis, Minster, 1844. Plate XXIV, fig. 1 and ? fig. 2. 
1844. Turzo mpiuis, Minst. Goldf., Petref., pl. exciv, fig. 9. 
1869. — _ — Brauns, Mittl. Jura, p. 180, 
1873. Lirrortna mpiuts, Miinst. Tawney, Dundry Gasteropoda, p. 23 (15). 
Description : 
Length : : . 13 mm. 
Length of body-whorl i total height : . 54: 100. 
Spiral angle . : | 02k: 
Shell ovately conical, turrited; spire acute. thesis five or six, angular, 
.widely separated by the suture. The ornaments consist of three prominent 
spirals decussated at the widely separated nodes by coarse axial costz; in the 
gape of the suture a fourth spiral may sometimes be seen. 
Body-whorl subangular and slightly ventricose ; ornaments similar to those 
of the spire, with five rather fine spirals in the base ; fine axial strize throughout. 
Aperture ovate, pillar-lip produced in front. 
Relations and Distribution—There cannot be much doubt as to the correct- 
ness of Mr. Tawney’s identification. A few specimens have been found at 
Dundry, and possibly such a form as fig. 2 may represent this species in the 
Lincolnshire Limestone. 
Itt. edilis is a sort of poor relation to the ornata-group, and is more or less 
intimately connected with numerous named forms. The species next described is 
probably only a local variety of polymorphous tendencies. 
