A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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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 ...
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 ...
Página 11
The cœnocium , 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 ...
The cœnocium , 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 ...
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 ...
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 ...
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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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