ulip on a footstalk; becomes
globular; shows traces of dividing, and at last splits into three, four,
or five egg-shaped balls, which finally separate as perfect ova. Within
the peduncle, the ovarian tubes branch out in all directions, and within
the footstalks of the branches (differently from what takes place round
the sack), ova are developed, as well as at their ends. Close together,
along the rostral (_i. e._, ventral) edge of the peduncle, two nearly
straight, main ovarian tubes or ducts may be detected, which do not give
out any branches till about half way down the peduncle, where they
subdivide into branches, which inosculate together, and give rise to the
mass filling the peduncle, and sometimes, as we have just seen, sending
up branches round the sack. These two main unbranched ovarian ducts,
followed up the peduncle, are seen to enter the body of the Cirripede
(close along side the great double peduncular nerves), and then
separating, they sweep in a large curve along each flank of the prosoma,
under the superficial muscles, towards the bases of the first pair of
cirri; and then rising up, they run into two glandular masses. These
latter rest on the upper edge of the stomach, and touch the caeca where
such exist; they were thought by Cuvier to be salivary glands. They are
of an orange colour, and form two, parallel, gut-formed masses, having,
in Conchoderma, a great flexure, and generally dividing at the end near
the mouth into a few blunt branches. I was not able to ascertain whether
the two main ducts, coming from the peduncle, expanded to envelope them,
or what the precise connection was. The state of these two masses varied
much; sometimes they were hollow, with only their walls spotted with a
few cellular little masses; at other times they contained or rather were
formed of, more or less globular or finger-shaped aggregations of pulpy
matter; and lastly, the whole consisted of separate pointed little
balls, each with a large inner cell, and this again with two or three
included granules. These so closely resembled, in general appearance
and size, the ovigerms with their germinal vesicles and spots, which I
have often seen at the first commencement of the formation of the ova in
the ovarian tubes in the peduncle, that I cannot doubt that such is
their nature. Hence I conclude, that these two gut-formed masses are the
true ovaria. I may add, that several times I have seen in the two long,
unbranched ducts,