A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 1
These facts are so intimately mixed up with the gradual development of correct
views as to the nature of the true Polypes , with which the Polyzoa had , until
recent times , been confounded , without any suspicion of the wide interval by
which ...
These facts are so intimately mixed up with the gradual development of correct
views as to the nature of the true Polypes , with which the Polyzoa had , until
recent times , been confounded , without any suspicion of the wide interval by
which ...
Página 2
Not so , however , thought Jean André Peysonelle , physician at Marseilles ; he
soon saw that the flowers described by Marsigli were nothing more than the
beautiful starry polypes of the coral , and he maintained that these were true
animals ...
Not so , however , thought Jean André Peysonelle , physician at Marseilles ; he
soon saw that the flowers described by Marsigli were nothing more than the
beautiful starry polypes of the coral , and he maintained that these were true
animals ...
Página 3
... to remain for nearly a century unrecognised , and it was not until a similar one
in certain marine polypoid animals arrested the attention of naturalists , that its
importance , and its true bearing on systematic zoology , began to be appreciated
.
... to remain for nearly a century unrecognised , and it was not until a similar one
in certain marine polypoid animals arrested the attention of naturalists , that its
importance , and its true bearing on systematic zoology , began to be appreciated
.
Página 4
... in the general admission of the animality , not only of the true corals and
madrepores , but of all those flexible and horny productions whose plant - like
form was at such variance with every previously conceived notion of animal
existence .
... in the general admission of the animality , not only of the true corals and
madrepores , but of all those flexible and horny productions whose plant - like
form was at such variance with every previously conceived notion of animal
existence .
Página 5
... are exceedingly vague and incorrect ; the difference between the Polyzoa and
the true radiate zoophytes never occurred to him , and he imagines the affinity
with the Mollusca to be possessed by the entire group of his polypes à polypiers .
... are exceedingly vague and incorrect ; the difference between the Polyzoa and
the true radiate zoophytes never occurred to him , and he imagines the affinity
with the Mollusca to be possessed by the entire group of his polypes à polypiers .
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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