 | American Association for the Advancement of Science - 1871 - Страниц: 440
...could be seen coursing back and forth in its channel. It was distinctly and regularly constricted or ringed, and presented a remarkably worm-like appearance....unwound at full length. It was contractile also, and would quickly jerk the body beneath the sand. But the most startling observation in connection with... | |
 | 1870 - Страниц: 500
...could be seen coursing back and forth in its channel. It was distinctly and regularly constricted or ringed, and presented a remarkably wormlike appearance....It had layers of circular and longitudinal muscular fiber, and coiled itself in numerous folds or unwound at full length. It was contractile also, and... | |
 | 1871 - Страниц: 812
...or bristles, which swung back and forth like a galley of oars, leaving a peculiar track in the sand. or unwound at full length. It was contractile, also,...interesting animal was the fact, that its blood was red. Tliis was strongly marked in the gills, which were found in the shape of a series of rows of simple... | |
 | American Association for the Advancement of Science - 1871 - Страниц: 440
...could be seen coursing back and forth in its channel. It was distinctly and regularly constricted or ringed, and presented a remarkably worm-like appearance....unwound at full length. It was contractile also, and would quickly jerk the body beneath the sand. But the most startling observation in connection with... | |
 | 1871 - Страниц: 1016
...worm-like appearance. It had layers of circular aud longitudinal muscular fibre, and coiled itself iu numerous folds or unwound at full length. It was contractile,...and quickly jerked the body beneath the sand when ularmed. But the most startling discovery in connection with this Interesting animal was the fact,... | |
 | 1871 - Страниц: 806
...or bristles, which swung back and forth like a galley of oars, leaving a peculiar track in the sand. or unwound at full length. It was contractile, also, and quickly jerked this body beneath the sand when alarmed. But the most startling discovery in connection with this interesting... | |
 | 1870 - Страниц: 488
...was hollow, and the blood could be seen coursing back and forth in this channel. It was distinctly regularly ringed( and presented a remarkably worm-like...longitudinal muscular fibre, and coiled itself in numerous fjlds or unwound at full length. It was contractile, also, and quickly jerked the body beneath the... | |
 | 1870 - Страниц: 958
...could be seen coursing back and forth in its channel. It was distinctly and regularly constricted or ringed, and presented a remarkably wormlike appearance....It had layers of circular and longitudinal muscular fiber, and coiled itself in numerous folds or unwound at full length. It was contractile also, and... | |
 | 1870 - Страниц: 570
...could he seen coursing back and forth in its channel. It was distinctly and regularly constricted or ringed, and presented a remarkably worm-like appearance; it had layers of circular and longitudinal mnsculur fibre, and coiled itself in numerous folds, or unwound at full length ; it was contractile... | |
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It was distinctly and regularly ringed, and presented a remarkably worm-like appearance. It had layers of circular and longitudinal muscular fibre, and coiled itself in numerous folds or unwound at full length. It was contractile, also, and quickly jerked... 