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glochidium

glochidium

glochidium Sentence Examples

  • (From Balfour.) Both figures represent the glochidium stage.

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  • The glochidium quits the gillpouch of its parent and swims by alternate opening and shutting of the valves of its shell, as do adult Pecten and Lima, trailing at the same time a long byssus thread.

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  • The glochidium is formed by the precocious development of the anterior adductor and the retardation of all the other organs except the shell.

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  • Other Lamellibranchs exhibit either a trochosphere larva which becomes a veliger differing only from the Gastropod's and Pteropod's veliger in having bilateral shell-calcifications instead of a single central one; or, like Anodonta, they may develop within the gill-plates of the mother, though without presenting such a specialized 210 1P -' 1 °* larva as the glochidium.

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  • pallial suture and no siphons; freshwater; larva a glochidium.

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  • (From Balfour.) Both figures represent the glochidium stage.

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  • - Embryo of Pisid- fertilized, and advance whilst still in ium pusillum in the diblastula this position to the glochidium phase stage, surface view (after Lanof development (fig.

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  • The development of Anodonta is remarkable for the curious larval form known as glochidium (fig.

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  • The glochidium quits the gillpouch of its parent and swims by alternate opening and shutting of the valves of its shell, as do adult Pecten and Lima, trailing at the same time a long byssus thread.

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  • The glochidium is formed by the precocious development of the anterior adductor and the retardation of all the other organs except the shell.

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  • Other Lamellibranchs exhibit either a trochosphere larva which becomes a veliger differing only from the Gastropod's and Pteropod's veliger in having bilateral shell-calcifications instead of a single central one; or, like Anodonta, they may develop within the gill-plates of the mother, though without presenting such a specialized 210 1P -' 1 °* larva as the glochidium.

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  • pallial suture and no siphons; freshwater; larva a glochidium.

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