from The Century Dictionary and Cyclopedia
- n. In a bivalve, the whole space included between the pallial lobes, containing the gills, visceral mass, and foot.
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The males have a duct in under the oesophagus, extending from the mantle-cavity to the lower portion of the sac, and there is an organ to which it attaches, resembling a breast; (see diagram) in the female there are two of these organs, situated higher up; (see diagram) with both sexes there are underneath these organs certain red formations.
In certain male cuttle-fishes, in the breeding season, one of the arms develops in a curious fashion into a long coiled whip-lash, and in the act of breeding may then be transferred to the mantle-cavity of the female.
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Both kinds of cells pass first into the mantle-cavity after the opening of the gonads, proceed through the gill-clefts into the branchial gut, and are discharged from this through the mouth.
If we open the thick tunic or mantle in order to examine the internal organisation, we first find a spacious cavity filled with water -- the mantle-cavity or respiratory cavity
The respiratory water now passes from the gut-cavity (D) into the mantle-cavity (A).
The ripe ova (Figure 2.221 o apostrophe) fall directly from the ovary (o) into the mantle-cavity.
Although we can find afterwards no continuation of the body-cavity (Figure 2.216 U) in the lateral walls of the mantle-cavity, in the gill-covers or mantle-folds
A mantle-cavity, K gill-clefts, b = E epidermis, E1 the same as visceral epithelium of the mantle-cavity, E2 as parietal epithelium of the mantle-cavity.)
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