A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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While the Fresh - water Polyzoa have been carefully studied on the Continent , especially by Van Beneden and Dumortier , they have hitherto ( if we except an excellent paper by Mr. Albany Hancock ) received in this country but little ...
While the Fresh - water Polyzoa have been carefully studied on the Continent , especially by Van Beneden and Dumortier , they have hitherto ( if we except an excellent paper by Mr. Albany Hancock ) received in this country but little ...
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Residing in a remote part of Ireland , and in a great measure cut off from intercourse * Dumortier and Van Beneden ( ' Hist . Nat . des Pol . comp . d'eau douce ' ) assign to Lamouroux the merit of having been the first to detect the ...
Residing in a remote part of Ireland , and in a great measure cut off from intercourse * Dumortier and Van Beneden ( ' Hist . Nat . des Pol . comp . d'eau douce ' ) assign to Lamouroux the merit of having been the first to detect the ...
Página 14
M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden believes it to be an accidental investment acquired by the animal during confinement . † The ectocyst in Paludicella is formed of a smooth ...
M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden believes it to be an accidental investment acquired by the animal during confinement . † The ectocyst in Paludicella is formed of a smooth ...
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Action : it elevates the epistome , and draws it away from the mouth . * M. Van Beneden has himself given up his earlier views upon this point , and has referred the appearance in question to its proper cause . Dumortier and Van Beneden ...
Action : it elevates the epistome , and draws it away from the mouth . * M. Van Beneden has himself given up his earlier views upon this point , and has referred the appearance in question to its proper cause . Dumortier and Van Beneden ...
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In a subsequent memoir ( Dumortier and Van Beneden , Hist . Nat . des Pol . comp . d'eau douce , ' Mém . de l'Acad . Roy . de Bruxelles , ' tome xvi , Complément ) he modifies this view , and comparing the polyzoon in question to plants ...
In a subsequent memoir ( Dumortier and Van Beneden , Hist . Nat . des Pol . comp . d'eau douce , ' Mém . de l'Acad . Roy . de Bruxelles , ' tome xvi , Complément ) he modifies this view , and comparing the polyzoon in question to plants ...
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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