GASTEROPODA. 65 
Torso Suarret. Plate IX, figs. 28, 28a. 
T. Testad conoided; anfractibus (A) convexis, gradatim tumescentibus, suturis profunde 
impressis; anfractibus liners elatis equalibus, longitudinalibus et regularibus ornatis, aliis 
transversis decussatis; lineis transversis superné distantibus, inferne approximatis; apertura 
ovata; umbilico nullo. 
Shell conoidal; whorls (4) convex, gradually increasing in size, their sutures deeply 
impressed ; the surface of the whorls is ornamented with numerous equal and regular lon- 
gitudinal lines, tranversely decussated by others of equal size; the transverse lines are 
arranged distantly upon the upper portions of the whorls, but more nearly upon the lower ; 
aperture oval; no umbilicus. 
Both descriptions of lines are scarcely discernible, except upon the last volution, where 
they are prominent; but the lower portion of this whorl is destitute of the longitudinal 
lines, which extend over only the upper half. 
The general figure differs from Zurbo elaboratus (Plate IX, fig. 27), im the more gradual 
increase of the whorls, which are likewise more convex, and have not the distinct sulcus 
or area upon their upper portions, nor the large elevated coste ; these distinctive features 
have been faithfully delineated by the artist. The longitudinal lines are equal in size to 
those which are transverse, forming a simple cross-barred surface. 
Locality. Wt is rare; but has been found both at Bussage and Minchinhampton 
Common. ‘This species is dedicated to D. Sharpe, Esq., F.R.S. 
Turso pyemazus. Plate IX, figs. 29, 29a. 
T. Testa pared, conicd; apice obtuso; anfractibus (A—5) planatis, costis longitudi- 
nalibus numerosis (circa 16 in ambitu), cum punctis interstitialibus ornatis; aperturd 
depressd. - 
Shell small, conical, apex obtuse; whorls (4—5) flattened, ornamented with numerous 
longitudinal ribs (about 16 in a volution), the interstitial spaces being closely and deeply 
punctated ; aperture depressed. ‘The cost are large and equal ; their continuity is inter- 
rupted by a narrow, encircling band at the base of each whorl; the height of the entire 
shell is somewhat greater than its transverse diameter at the base; the exact character of 
the mouth not being exposed, it is placed only provisionally in the genus Zurdo. 
Locality. Minchinhampton Common, at which place it would seem to be rare. 
Turbo capitangeus, Goldf. Plate IX, figs. 33, 33a. 
TuRBO caprtangrus, Goldfuss. 1842. Petref., iii, p. 97, t. 194, fig. 1. 
— _ Bronn. 1848. Index Paleont., p. 1318. 
