A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 2
... a term which up to the present day has been in general adoption . It was just at
this time that Abraham Trembley was engaged in his famous experiments on the
Hydra , which Leeuwenhock had originally discovered , attached to the leaves ...
... a term which up to the present day has been in general adoption . It was just at
this time that Abraham Trembley was engaged in his famous experiments on the
Hydra , which Leeuwenhock had originally discovered , attached to the leaves ...
Página 3
The celebrity conferred on Trembley by his researches into the structure and
economy of Hydra , is known to every one in the least acquainted with the
literature of zoology ; but the assiduity of the famous historian of the fresh - water
polype ...
The celebrity conferred on Trembley by his researches into the structure and
economy of Hydra , is known to every one in the least acquainted with the
literature of zoology ; but the assiduity of the famous historian of the fresh - water
polype ...
Página 6
The discovery of the “ Polype à Panache , " and the determination of its structure
by Trembley and Baker . 6. The determination of the structure of certain marine
Polyzoa by the independent and nearly simultaneous labours of Grant , Edwards
...
The discovery of the “ Polype à Panache , " and the determination of its structure
by Trembley and Baker . 6. The determination of the structure of certain marine
Polyzoa by the independent and nearly simultaneous labours of Grant , Edwards
...
Página 14
Neither Trembley nor Baker takes any notice of this gelatinoid envelope . M.
Dumortier mentions it , and represents it in his figure , * while M. Van Beneden
believes it to be an accidental investment acquired by the animal during
confinement .
Neither Trembley nor Baker takes any notice of this gelatinoid envelope . M.
Dumortier mentions it , and represents it in his figure , * while M. Van Beneden
believes it to be an accidental investment acquired by the animal during
confinement .
Página 23
These currents , which extend into the tentacular crown , were long ago observed
by Trembley || in Lophopus crystallinus ; but this author contented himself with
simply recording their existence , and made no attempt to explain them .
These currents , which extend into the tentacular crown , were long ago observed
by Trembley || in Lophopus crystallinus ; but this author contented himself with
simply recording their existence , and made no attempt to explain them .
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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