of several New Shells. . 33 
two inches and a half in extreme. length; the basal volution is 
smooth; but the three next whorls of the spire are plaited, and 
slightly nodulous; these plaits then disappear, and leave the ter- 
minal volutions quite smooth; the apex is obtuse, but not enlarged ; 
the base of the shell is contracted, and the emarginate notch rather 
slight; the margin of the outer lip is somewhat reflected, and on 
the columella are four slender and nearly equal plaits. The colour 
is pale brown, elegantly marked by longitudinal, slender, waved, 
and angulated lines of a deep fulvous brown; at the top, bottom, 
and middle of the basal whorl, these lines are more thickened and 
deeper coloured, so as to form three transverse bands. Another 
specimen of this species was covered over with a reddish tinge, 
which nearly obscured its markings. The brown lines are also 
continued on the spire, but are fewer and more remote. 
Ob. Two specimens of this elegant voluta were brought home 
by one of the South Sea trading vessels from the Bay of Island, 
they are now in the possession of Mr. Mawe. 
VoLuta CostaTa. 
V. testa ovato-oblonga, costis sub-mucronatis, pallida, lineis 
fulvis interruptis fasciata; basi granos4; spira mediocris apice 
levi, obtuso; columella multiplicata, plicis tribus inferioribus max- 
imis. 
Shell ovate-oblong, with sub-mucronate ribs, pale, and banded 
with interrupted lines of fulvous; base granulated, spire moderate, 
the tip smooth and obtuse; pillar many plaited, the three inferior 
plaits largest. 
The situation of this species, appears intermediate between the 
Vol. festiva and mitreeformis of Lamarck, but its form cannot be 
compared to any other. It is little more than two inches and a 
quarter in extreme length ; the spire is rather produced, and occu- 
pies oneinch, With the exception of the terminal whorl at the apex 
of the spire, (which is perfectly smooth and obtuse,) the whole shell 
is marked by numerous, regular, convex ribs, about the same thick- 
ness as the breadth of the space which occurs between them; these 
ribs form a row of short obtuse spines, which crown the summit of 
Vou, XVII. D 
