A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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... and magnified , and I have never omitted to draw the polypide as well as the cœnocium , believing that the latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals .
... and magnified , and I have never omitted to draw the polypide as well as the cœnocium , believing that the latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals .
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The cells are the little chambers of which the cœnocium is made up , and in each of which a polypide is lodged . The part of the cell through which the polypide admits of protrusion and retraction is the orifice of the cell .
The cells are the little chambers of which the cœnocium is made up , and in each of which a polypide is lodged . The part of the cell through which the polypide admits of protrusion and retraction is the orifice of the cell .
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Arms of lophophore united at the extremities . at } Polypide only partially retractile ? Polypide completely retractile ; evagination of tentacular . sheath imperfect . Polypide completely retractile ; evagination perfect ; orifice of ...
Arms of lophophore united at the extremities . at } Polypide only partially retractile ? Polypide completely retractile ; evagination of tentacular . sheath imperfect . Polypide completely retractile ; evagination perfect ; orifice of ...
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Each chamber lodges a polypide , and its cavity is either shut off from those of the neighbouring chambers , or freely communicates with them . In every instance * the polypide can be protruded from its cell , and again withdrawn into ...
Each chamber lodges a polypide , and its cavity is either shut off from those of the neighbouring chambers , or freely communicates with them . In every instance * the polypide can be protruded from its cell , and again withdrawn into ...
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This thin , non - contractile portion of the endocyst constitutes the tentacular sheath which encloses and protects the tentacula during the retracted state of the polypide . Near the spot where the endocyst ...
This thin , non - contractile portion of the endocyst constitutes the tentacular sheath which encloses and protects the tentacula during the retracted state of the polypide . Near the spot where the endocyst ...
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Otras ediciones - Ver todas
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 Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British 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 Hancock 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 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