A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 8
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my “ Report on
...
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my “ Report on
...
Página 11
The cænæcium , in every case , except in Cristatella , is composed of two distinct
membranes , which must be carefully distinguished from one another — an
internal , the endocyst , which is always soft , transparent , and contractile ; and
an ...
The cænæcium , in every case , except in Cristatella , is composed of two distinct
membranes , which must be carefully distinguished from one another — an
internal , the endocyst , which is always soft , transparent , and contractile ; and
an ...
Página 12
For reasons to be presently mentioned , it is highly probable that the endocyst is
pervaded by a system of canals of extreme delicacy , which constitute an
irregular network in its substance . Besides the structure now described , peculiar
fibres ...
For reasons to be presently mentioned , it is highly probable that the endocyst is
pervaded by a system of canals of extreme delicacy , which constitute an
irregular network in its substance . Besides the structure now described , peculiar
fibres ...
Página 13
A peculiar condition of the endocyst of Lophopus , though most probably only
abnormal , must be mentioned here . In specimens of this Polyzoon which had
been kept for a few days , and occasionally in some just captured , multitudes of ...
A peculiar condition of the endocyst of Lophopus , though most probably only
abnormal , must be mentioned here . In specimens of this Polyzoon which had
been kept for a few days , and occasionally in some just captured , multitudes of ...
Página 14
They are formed both by the ectocyst and endocyst . In Paludicella they acquire
their maximum in development and constancy ; they occur here between every
cell , and consist of an annular process , which projects transversely from the ...
They are formed both by the ectocyst and endocyst . In Paludicella they acquire
their maximum in development and constancy ; they occur here between every
cell , and consist of an annular process , which projects transversely from the ...
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium 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 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 represented 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