A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 16
... it is here described in connection with the organs of digestion , its relation to
the digestive system is perhaps very remote . possibly be more correctly viewed
as connected with sensation . Its homological import will be afterwards
considered .
... it is here described in connection with the organs of digestion , its relation to
the digestive system is perhaps very remote . possibly be more correctly viewed
as connected with sensation . Its homological import will be afterwards
considered .
Página 33
... and apparently also in connection at this place with the ovary , is a cylindrical
flexible chord ( anterior funiculus ) ( Pl . X ... and is thus , as in Alcyonella ,
separated , by a considerable interval , from the ovary ; it is connected with the
stomach ...
... and apparently also in connection at this place with the ovary , is a cylindrical
flexible chord ( anterior funiculus ) ( Pl . X ... and is thus , as in Alcyonella ,
separated , by a considerable interval , from the ovary ; it is connected with the
stomach ...
Página 50
... and which is necessarily connected with the difference in the arrangement of
the other organs in the respective groups . In the Polyzoa , from their constant
motions of retraction and exsertion , the ganglion could not occupy the fixed
position ...
... and which is necessarily connected with the difference in the arrangement of
the other organs in the respective groups . In the Polyzoa , from their constant
motions of retraction and exsertion , the ganglion could not occupy the fixed
position ...
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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