85 
MELANIA, Lamarcke • 
Gen. Char. Univalve, turretted, aperture entire, 
ovate or oblong; inner lip spread over the base 
of the columella, which is smooth, 
MELANIA sulcata, 
TAB, XXXIX.— Middle figure. 
.Spec. Char. Spire more than five times the length 
of its diameter, with spiral striae; a concave 
sulcus or furrow between each whorl. Whorls 
fourteen or more. 
A rather strong shell, about eight inches long; thfe 
surface of each whorl regularly convex, with a margin 
along the upper part; each one is separated from the next 
by a narrow groove. 
I am favoured with this shell by Mr. John Holloway of 
Portsmouth, whose zeal in these researches has been useful 
in many discoveries which he has enabled me to point out 
from time to time. He found it at Stubbington Cliffs, 
between Stokes Bay and Southampton water. This Cliff 
is about twenty or thirty feet high, and is composed of sand 
and gravel, more or less mixed with blue mud and frequent 
irregular patches of sand, at the base of this is a stratum, 
not more than two feet thick, of blue clay or mud, in which 
the shells are found. He has a specimen five inches 
long; but the figure is taken, the upper part from one spe- 
cimen, and the lower part from another s it is remarkable 
that these specimens seldom have either end perfect; 
whereas some specimens of Turbines, &c. of Linn, are 
remarkable for having one end perfect and the other not. 
