A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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In the preparation of the monograph no trouble has been spared to render it as complete as possible , and the subjects of which it treats have been considered under every point of view of which they seemed susceptible - zoographically ...
In the preparation of the monograph no trouble has been spared to render it as complete as possible , and the subjects of which it treats have been considered under every point of view of which they seemed susceptible - zoographically ...
Página 2
De Jussieu had here an opportunity of examining the Alcyoniums , Sertulariæ , Flustræ , and other flexible and plant - like productions to which the observations of Peysonelle had not extended , and the result was a complete conviction ...
De Jussieu had here an opportunity of examining the Alcyoniums , Sertulariæ , Flustræ , and other flexible and plant - like productions to which the observations of Peysonelle had not extended , and the result was a complete conviction ...
Página 4
... but he seems as yet to have had but an imperfect knowledge of them , and I cannot find anything in the Memoir to justify the belief that this excellent zoologist was acquainted with the complete intestinal canal of the animal .
... but he seems as yet to have had but an imperfect knowledge of them , and I cannot find anything in the Memoir to justify the belief that this excellent zoologist was acquainted with the complete intestinal canal of the animal .
Página 5
most valuable investigations into the Compound Ascidia , M. Edwards , without any knowledge of the labours of Grant in the same field , not only demonstrated in a very complete manner the anatomy of the Flustræ , but was the first to ...
most valuable investigations into the Compound Ascidia , M. Edwards , without any knowledge of the labours of Grant in the same field , not only demonstrated in a very complete manner the anatomy of the Flustræ , but was the first to ...
Página 11
... in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion of the endocyst is , perhaps , in all cases , if we except the anomalous genus Pedicellina , complete .
... in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion of the endocyst is , perhaps , in all cases , if we except the anomalous genus Pedicellina , complete .
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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