A Monograph of the Freshwater Polyzoa, Including All the Known Species, Both British and Foreign |
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To Dr. Leidy's promised anatomical account of Urnatella, we cannot but look
forward with impatience, while, in the mean time, I have had a woodcut prepared
from a pencil sketch kindly furnished me by Dr. Leidy, so that I am enabled to ...
To Dr. Leidy's promised anatomical account of Urnatella, we cannot but look
forward with impatience, while, in the mean time, I have had a woodcut prepared
from a pencil sketch kindly furnished me by Dr. Leidy, so that I am enabled to ...
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While the present work, in its purely zoographical relations, is entirely confined to
those species which inhabit the fresh water, its anatomical details have a much
more extended application. The Polyzoa constitute an exceedingly natural group,
...
While the present work, in its purely zoographical relations, is entirely confined to
those species which inhabit the fresh water, its anatomical details have a much
more extended application. The Polyzoa constitute an exceedingly natural group,
...
Página 4
Important improvements too had taken place in our means of observation, and
the value of anatomy in the determination of the true rank of organic beings had
been very generally recognised. Zoologists were thus prepared to appreciate the
...
Important improvements too had taken place in our means of observation, and
the value of anatomy in the determination of the true rank of organic beings had
been very generally recognised. Zoologists were thus prepared to appreciate the
...
Página 5
of the labours of Grant in the same field, not only demonstrated in a very
complete manner the anatomy of the Flustrae, but was the first to call attention to
the close connection of their structure with that of the Ascidiae, and the important
bearing ...
of the labours of Grant in the same field, not only demonstrated in a very
complete manner the anatomy of the Flustrae, but was the first to call attention to
the close connection of their structure with that of the Ascidiae, and the important
bearing ...
Página 6
“Beiträge zur physiologischen kenntniss der Corallen-thiere im algemeinen, und
besonders des Rothen Meeres.” t See an admirable criticism by Busk on the
Priority of the term Polyzoa, in the 'Annals of Nat. Hist.,' vol. x, 1852. ANATOMY
AND ...
“Beiträge zur physiologischen kenntniss der Corallen-thiere im algemeinen, und
besonders des Rothen Meeres.” t See an admirable criticism by Busk on the
Priority of the term Polyzoa, in the 'Annals of Nat. Hist.,' vol. x, 1852. ANATOMY
AND ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance attached become Beneden bodies branches branchial British canal cavity cell characters cilia closely coenoecium complete condition connected consists constitutes contained continuous 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 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 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