A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 24
I cannot , however , confirm their existence in the latter situation ; indeed , my own
observations are entirely opposed to their presence on the alimentary canal ; and
I cannot help thinking that this statement of Van Beneden is connected with ...
I cannot , however , confirm their existence in the latter situation ; indeed , my own
observations are entirely opposed to their presence on the alimentary canal ; and
I cannot help thinking that this statement of Van Beneden is connected with ...
Página 111
British : Generally distributed through England , Ireland , and Scotland ; abundant
in the Regent Canal , London ; in the Grand Canal , Dublin ; and in the Union
Canal , Edinburgh . G. J. A. - Northumberland Lakes . Mr. Hancock . Foreign : In a
...
British : Generally distributed through England , Ireland , and Scotland ; abundant
in the Regent Canal , London ; in the Grand Canal , Dublin ; and in the Union
Canal , Edinburgh . G. J. A. - Northumberland Lakes . Mr. Hancock . Foreign : In a
...
Página 114
Eminently lightshunning . LOCALITIES . - British : Regent Canal , London ;
Chelmer Canal , Essex ; Grand Canal , Dublin ; Union Canal , Edinburgh . G. J. A.
- Lough Erne , Ireland . Mr. TVm . Thompson . Bromley Lough , Northumberland .
Eminently lightshunning . LOCALITIES . - British : Regent Canal , London ;
Chelmer Canal , Essex ; Grand Canal , Dublin ; Union Canal , Edinburgh . G. J. A.
- Lough Erne , Ireland . Mr. TVm . Thompson . Bromley Lough , Northumberland .
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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 characters cilia closely complete condition connected consists constitutes contained continuous corresponding 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 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