CIlUtIPEDA. 
469 
shaped, expanding, entire, and waved aperture; provided with 
an ovate face-valve. 
Genus 74. —ASPERGILLUM.— Lamarck. 
Generic Character. — Sheath tubular, testaceous, attenuated 
towards the anterior termination, where it is open, and thick¬ 
ened posteriorly into a club, with the valve of the shell incrust- 
ed on its walls; club convex, with a terminal disk, perforated 
with scattered, somewhat tubular holes, having a fissure in the 
centre. 
Aspergillum Javanum. — The Java Aspergillum. 
iPlate XCI. fig-. 29. 
Smooth, club-shaped, the apex surrounded by fimbriated rays. 
Five inches long. Inhabits the sea at Java. 
CLASS III.—CIRRIPEDA. 
The animals are soft, destitute of head or eyes, covered with 
a shell, which is fixed to other substances, and incapable of lo¬ 
comotion. The body is inarticulated, provided with a mantle, 
having tentacular, cirrous, or many-pointed arms or feelers 
above. 
The class Cirripeda is divided by Lamarck into two orders:— 
I. Pedunculata. The body supported by a tubular moveable 
peduncle, the base of which is attached to extraneous substances 
in the ocean, such as stones, wood, &c.; the mouth is usually 
placed below.—II. Sessilia. The body without a peduncle, 
and attached to extraneous substances; the mouth usually at 
the top. 
All the Cirripeda are multivalve, or composed of a number 
of pieces. 
ORDER I.—PEDUNCULATA. 
Body supported on a tubular peduncle. 
2 o. 
