A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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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
...
Página 52
... endeavoured to institute between the two great sections of the Molluscoida , is
that insisted on in the present memoir . ... least unless it appears that this history
presents nothing irreconcileable with the conclusions which rest on anatomical ...
... endeavoured to institute between the two great sections of the Molluscoida , is
that insisted on in the present memoir . ... least unless it appears that this history
presents nothing irreconcileable with the conclusions which rest on anatomical ...
Página 103
P. coralloides presents in habit a very close resemblance to Alcyonella fungosa ;
indeed , it must be viewed as ... The present species occurred rather abundantly
in the London Docks , on the River Thames ; where , in company with Mr.
P. coralloides presents in habit a very close resemblance to Alcyonella fungosa ;
indeed , it must be viewed as ... The present species occurred rather abundantly
in the London Docks , on the River Thames ; where , in company with Mr.
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous Cristatella crown 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 organs 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