An oval, involuted, internal shell, distinguished from the Ancillaria by
a narrow canal continued from its upper angle around the sutures of the
spiral whorls. It was formerly classed with the Voluta, which genus has
not the canal, so that they cannot be mistaken for each other. There is
a callosity uniting with the spiral canal, and another at the base of
the columella.
Shell thick, solid, smooth, oval, elongated, sub-cylindrical; the spiral
whorls very small, separated by a canal; aperture long, narrow; the
columellar edge reflected anteriorly by a callosity, and striated
obliquely through all its length. The shells are generally clouded or
covered with waved lines of a brownish colour, more or less dark.
Oliva porphyria.
O. textilina.
O. erythrostoma.
O. pica.
O. tremulina.
O. angulata.
O. maura.
O. sepulturalis.
O. fulminans.
O. irisans.
O. elegans.
O. episcopalis.
O. venulata.
O. guttata.
O. leucophæa.
O. undata.
O. inflata.
O. bicincta.
O. harpularia.
O. hepatica.
O. ustulata.
O. avellana.
O. tessellata.
O. carneola.
O. espidula.
O. oriola.
O. candida.
O. volutella.
O. tigrina.
O. Brasiliana.
O. utriculus.
O. reticularis.
O. flammulata.
O. granitella.
O. araneosa.
O. literata.
O. scripta.
O. tricolor.
O. sanguinolenta.
O. mustelina.
O. lugubris.
O. funebralis.
O. glandiformis.
O. Peruviana.
O. Senegalensis.
O. fusiformis.
O. auricularis.
O. acuminata.
O. subulata.
O. luteola.
O. testacea.
O. hiatula.
O. obtusaria.
O. Ceylanica.
O. nebulosa.
O. fabagina.
O. conoidalis.
O. undatella.
O. eburnea.
O. nana.
O. zonalis.
O. oryza.
_O. subulata._ The awl-shaped Olive. Pl. 30, fig 1.
Species elongated, with very projecting spire.
_O. undata._ The waved Olive. Pl. 30, fig. 4.
Species oval, spire hardly projecting.
_O. cruenta._ The bloody Olive.
Species cylindrical, suture canal deep; fawn colour, with triangular
spots of purple, and two dark brown spots on the edge of the outer lip.