A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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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 ...
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 ...
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 ...
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 ...
Página 3
... 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 .
... 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
... 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 .
... 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
... 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 .
... 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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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