A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... Nearly every species has been carefully examined in a recent state , while the anatomical observa- tions have been over and over again repeated for the purpose of verification , and many hundred specimens have thus passed beneath the ...
... Nearly every species has been carefully examined in a recent state , while the anatomical observa- tions have been over and over again repeated for the purpose of verification , and many hundred specimens have thus passed beneath the ...
Página 1
... nearly simultaneous investigations of several naturalists , separated as a distinct group , and described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They are chiefly ...
... nearly simultaneous investigations of several naturalists , separated as a distinct group , and described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They are chiefly ...
Página 2
... nearly unheeded ; and if at the end of more than a hundred years afterwards any lingering doubts as to the vegetability of these productions still remained , it was deemed that the dis- covery of the Count de Marsigli , who , in the ...
... nearly unheeded ; and if at the end of more than a hundred years afterwards any lingering doubts as to the vegetability of these productions still remained , it was deemed that the dis- covery of the Count de Marsigli , who , in the ...
Página 3
... 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 ...
... 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 6
... nearly simultaneous labours of Grant , Edwards , and Thompson ; and the recognition of the affinity of these productions with the compound Ascidians by Edwards and Thompson . 7. The designation , by a common independent name , of these ...
... nearly simultaneous labours of Grant , Edwards , and Thompson ; and the recognition of the affinity of these productions with the compound Ascidians by Edwards and Thompson . 7. The designation , by a common independent name , of these ...
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
adherent Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph Zoophytes