ORDER PEDICELLATA. 451 
water, or emptied at the will of the animal. ‘The mouth has 
no teeth, and is furnished only with a circle of osseous pieces. 
Some appendages, in the form of pouches, pour a saliva into 
it. The intestine is very long, diversely plicated, and at- 
tached to the sides of the body by a mesentery. A sort of 
partial circulation takes place in a very complicated double 
system of vessels, exclusively relative to the intestinal canal, 
and in a part of the meshes of which, is interlaced one of the 
two respiratory trees of which we have just spoken. There 
also appears to be a nervous cord, but very much attenuated, 
around the cesophagus. The ovary is composed of a multi- 
tude of blind vessels, partly branched, which all terminate at 
the mouth by a small common oviduct. They assume, at 
the time of gestation, a prodigious extension, and are then 
filled with a red matter, which appears to be the eggs. 
Some cords, of an extreme sensibility, attached near the 
anus, and which are developed at the same time, appear to 
be the male organs. ‘These animals must, then, be herma- 
phrodites. When they are disturbed, they frequently contract 
themselves with so much force that they tear and vomit up 
their intestines’. 
The holothuriz may be divided according to the distribu- 
tion of their feet. 
In some, they are all situated in the middle of the under 
part of the body, which forms a softer disk, on which the 
animal crawls, elevating the two extremities where the mouth 
and anus are placed, which they contract more than the 
middle. The anus finishes almost in a point. ‘Their tenta- 
cula are very large when developed. 
We have one in our seas whose envelope is almost scaly, 
Hol. phantapus, L. Miill., Zool., Dan. cxii. cxili. Mem. 
1 For the anatomy of Holothuriz, consult M. Tiedemann’s excellent 
work already referred to. 
G 
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