 | 1846 - 674 pages
...plate, but not itself surrounded with any plates peculiar to it; 3rd, that further towards the middle, but almost invariably on the upper half of the body...probably forms the ovarial orifice of the animal. These openings, with the exception of the mouth, are not found to exist when arms begin to be developed... | |
 | Geological Survey of Canada, James Hall - 1858 - 168 pages
...plates, but not itself surrounded with any plates peculiar to it. 3d. That further towards the middle, but almost invariably on the upper half of the body...of as many little valves. This probably forms the ovarian orifice of the animal. "These openings, with the exception of the mouth, are not found to exist... | |
 | Geological Survey of Canada - 1859 - 632 pages
...plates, but not itself surrounded with any plates peculiar to it. 3d. That further towards the middle, but almost invariably on the upper half of the body...of as many little valves. This probably forms the ovarian orifice of the animal. "These openings, with the exception of the mouth, are not found to exist... | |
 | Geological Society of London - 1846 - 742 pages
...plate, but not itself surrounded with any plates peculiar to it ; 3rd, that further towards the middle, but almost invariably on the upper half of the body...probably forms the ovarial orifice of the animal. These openings, with the exception of the mouth, are not found to exist when arms begin to be developed... | |
 | Geological Society of London - 1846 - 678 pages
...plate, but not itself surrounded with any plates peculiar to it; 3rd, that further towards the middle, but almost invariably on the upper half of the body...probably forms the ovarial orifice of the animal. These openings, with the exception of the mouth, are not found to exist when arms begin to be developed... | |
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but almost invariably on the upper half of the body on which the mouth is placed, there rises a round or oval aperture, not connected with the mouth, and often covered by a five or six-sided pyramid, which seems to be composed of as many little valves.... 