146 CONCHOLOGY. 
spire rounded into a teat; aperture generally much longer than 
wide and sloping anteriorly ; the right edge bent outwardly, entire 
and soft; the columellar-edge garnished with large folds more or 
less oblique, and slightly varying in number with age. Found 
chiefly in the seas of the Torrid Zone. Forty-four species. 
Voluta nautica. 
V. armata. 
V. tesselata. 
V. cymbia. 
V. proboscidalis. 
V. diadema. 
V. ducalis. 
V. Neptuni. 
V. olla. 
V. poreina. 
V. pellis-serpentis. 
V. chlorosina. 
V. polyzonalis. 
V. magnifica. 
V. Magellanica. 
V."fulminata. 
V. scapha. 
V. mitis. 
V. Braziliana. 
V. Guinaica. 
V. undulata. 
V. festiva. 
4, Genus Marginella. 
Voluta Atthiopica. 
. Imperialis. 
. vespertilio. 
. musica. 
. levigata. 
nodulosa. 
ancilla. 
Pacifica. 
Junonia. 
melo. 
. Hebrea, 
. serpentina. 
carneolata. 
fulva. 
nuclea. 
Lapponica. 
. volvacea. 
* 
. mitreformis. 
nivosa. 
thiarella. 
V. sulcata. 
V. vexilla. 
Addaddd4ddd aad AS885 
Pl. XII, 
Animal. Oval, involuted ; foot elliptical, very large, and widest 
in front, where its edge presents a transverse furrow ; head small, 
distinct, with two long, very sharp tentacula, the eyes at the ex- 
ternal part of their base; mouth provided with a trunk. 
Shell. Smooth, polished, oval-oblong, a little conical, with a 
short mammelonated spire; aperture somewhat narrow, slightly 
oval on account of a light curve of the right edge, which is dilated 
outwardly ; the columellar edge marked with three oblique dis- 
