A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 22
Página 44
... represented by the tentacula of the Polyzoon , Fig . 6 . Fig . 7 . d ...... k-- * -0000 n P น g - h b d d a Fig . 6. Plan of an Ascidian Tunicate- longitudinal section . Fig . 7. Plan of an Ascidian Tunicate- transverse section . e ...
... represented by the tentacula of the Polyzoon , Fig . 6 . Fig . 7 . d ...... k-- * -0000 n P น g - h b d d a Fig . 6. Plan of an Ascidian Tunicate- longitudinal section . Fig . 7. Plan of an Ascidian Tunicate- transverse section . e ...
Página 49
... represented in the retracted Polyzoon by the dorsal portion of the cavity of the tentacular sheath , the whole of the cavity of this sheath becoming obliterated in the exserted state of the polypide . The thoracic chamber of the ...
... represented in the retracted Polyzoon by the dorsal portion of the cavity of the tentacular sheath , the whole of the cavity of this sheath becoming obliterated in the exserted state of the polypide . The thoracic chamber of the ...
Página 52
... represents that of the future respiratory sac , shows itself at a very early period in the interior of the embryo , having immediately behind it the first indication of the alimentary canal as a tube of uniform diameter bent into a loop ...
... represents that of the future respiratory sac , shows itself at a very early period in the interior of the embryo , having immediately behind it the first indication of the alimentary canal as a tube of uniform diameter bent into a loop ...
Página 53
... represents the thoracic sinus of the branchial sac of the Ascidian , becomes separated from it just as the branchial sac separates itself from the walls of the thoracic chamber of the Ascidian . The development of Salpa has been ...
... represents the thoracic sinus of the branchial sac of the Ascidian , becomes separated from it just as the branchial sac separates itself from the walls of the thoracic chamber of the Ascidian . The development of Salpa has been ...
Página 56
... represents accu- rately the structure so far as it was possible to determine it from the single specimen examined . The animal inhabited a fissure in a fragment of rock , from which it was capable of being pro- truded to the length of ...
... represents accu- rately the structure so far as it was possible to determine it from the single specimen examined . The animal inhabited a fissure in a fragment of rock , from which it was capable of being pro- truded to the length of ...
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