A well-known but rare shell; the larger end closed by a convex disk,
with numerous small perforations, and encircled by a dilated margin of
elegant papyraceous tubes, resembling a beautifully plaited ruff; the
smaller end open. Found in sandy places at low water.
Shell oval, slightly elongated, striated longitudinally,
sub-equilateral; adhering, more or less confounded with the coats of a
rather thick calcareous tube, conic, club-shaped, open at its attenuated
extremity, and terminated at the other by a convex disk pierced by a
great number of sub-tubular, rounded holes, and by a fissure in the
centre.
Aspergillum Javanum.
A. vaginiferum.
A. Novæ Zeylandiæ.
A. agglutinans.
_A. Javanum._ The Java Aspergillum. Pl. 33, fig. 3.
Species smooth, in which the circumference of the disk is bordered with
a waved testaceous fringe.
_A. Novæ Zeylandiæ._ The New-Zealand Aspergillum.
Species in which the circumference of the disk is without a fringe.