36 Zoological Miscellany. 
Doubtful Cowry. Cyprcoa dubia. Shell, back speckled with chest- 
nut brown, the spots closer together and forming a kind of band along 
the back, and at the extremities are a series of black irregular spots; the 
sides just above the margin rather thickened and wavy; purplish white with 
a large square purplish spot on the centre of the outer margin ; outer lip 
and base flattish ; inner side rather convex, obscurely shelving inwards. 
With four rather large teeth in front extending without interruption over 
the convex front of the columella, and nine or ten blunt teeth behind, 
the outer lip flat with twelve rather large conical teeth. Inhab , 
My collection. 
Very like Cyprwa err ones, but rather larger, the teeth rather less 
numerous, otherwise exactly similar; the sides over the margin with 
scattered unequal black spots; the spire is flattish, partly exposed; front 
extremity slightly margined on each side. It differs from C. errones in 
the spotting of the margin, and from C.felina in the number of its teeth. 
.Allied Cowry. Cyprcea similis. Shell ovate ; back pale pinkish 
brown, with a very obscure broad, rather darker central band; spire flat; 
suture distinct, covered by a thin callosity ; margin pale whitish brown, 
thickened on the outer side, and especially on both sides of each extre- 
mity, obscurely waved on its upper edge ; base pale whitish brown, 
convex, smooth, with three unequal plaits in the front ; mouth rather wide, 
and wider in front; columella short and flat in front; teeth of the inner 
lip about twenty, rather large, unequal, and close together, especially on 
the hinder side, whitish. The outer lip much indexed, and rather thick- 
ened, with eighteen or nineteen rather large distinct fulvous brown teeth, 
extended over two-thirds of the breadth of the lip. 
Axis 1 inch 5 lines. Diam. 1 1 lines. Inhab. . In the col- 
lection of Mr. G. B. Sowerby. 
It agrees with C. Jllgoensis and C. fusco-dentata in shape, and in 
the three or four irregular plaits in the front extremity of the base, but 
differs from the first in the colour, breadth, and strength of the teeth of 
the outer lip, and from C. fusco-dentata in the large size, distinctness, 
and shortness of the teeth of the inner lip, which are not extended over 
the base, and in the teeth of the outer lip being more numerous and 
rather closer together. 
Rose-spotted Cowry. Cyprceaexigua, Shell oblong, pellucid, white, 
with pellucid rose-coloured spots and streaks, with transverse ridges, which 
are branched near the margin ; the interspaces between the ridges smooth, 
polished ; the extremities rather produced, rounded. Dorsal ridge none. 
Length lines. My collection. Allied to Cyprcea rugosa, but is 
smaller, rose-spotted, and the ridges fewer, larger, and the interspaces 
between them smooth. 
Description of a new Genus of Star-bearing Corals. 
Gen. Stylaster. 
Coral subcylindrically branching with scattered cells; cell deep cylin- 
drical, base with a central, subcylindrical tubercle with a rounded end 
