A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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The following work contains the result of many years ' careful study of the fresh -
water representatives of a group of animals which , in all their relations , are full of
interest for the philosophic naturalist . The highly curious modification of the ...
The following work contains the result of many years ' careful study of the fresh -
water representatives of a group of animals which , in all their relations , are full of
interest for the philosophic naturalist . The highly curious modification of the ...
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While the present work , in its purely zoographical relations , is entirely confined
to those species which inhabit the fresh water , its anatomical details have a
much more extended application . The Polyzoa constitute an exceedingly natural
...
While the present work , in its purely zoographical relations , is entirely confined
to those species which inhabit the fresh water , its anatomical details have a
much more extended application . The Polyzoa constitute an exceedingly natural
...
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The close relation of the Hydra with the marine polypes was now abundantly
apparent , and the important light which its study shed upon the nature of these
polypes , has invested its discovery with a peculiar interest as marking out a
distinct ...
The close relation of the Hydra with the marine polypes was now abundantly
apparent , and the important light which its study shed upon the nature of these
polypes , has invested its discovery with a peculiar interest as marking out a
distinct ...
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He also perceived their close relation to the compound Ascidić , and was the first
to designate them by a distinct name which no longer assumed their connection
with the polypes . The name thus proposed by Thompson for the group whose ...
He also perceived their close relation to the compound Ascidić , and was the first
to designate them by a distinct name which no longer assumed their connection
with the polypes . The name thus proposed by Thompson for the group whose ...
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... necessarily exclude not only Pedicellina , but even Fredericella , whose
relations with the species furnished with a crescentic lophophore are of the most
intimate kind . Hippocrepianism , therefore , though of great interest as a
morphological ...
... necessarily exclude not only Pedicellina , but even Fredericella , whose
relations with the species furnished with a crescentic lophophore are of the most
intimate kind . Hippocrepianism , therefore , though of great interest as a
morphological ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens represented resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young