A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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Página 23
... minute as to defy our attempts at detection , and yet capable of permitting a passage of fluid ; some facts already recorded ( page 13 ) , would seem to point to the existence of a system of tubes in the substance of the endocyst ...
... minute as to defy our attempts at detection , and yet capable of permitting a passage of fluid ; some facts already recorded ( page 13 ) , would seem to point to the existence of a system of tubes in the substance of the endocyst ...
Página 37
... minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface of the endocyst into the perigastric space . It is evidently composed of a mass of minute cells with a more condensed peripheral layer . It now ...
... minute spherical tubercle ( Pl . XI , fig . 10 ) , projecting from the inner surface of the endocyst into the perigastric space . It is evidently composed of a mass of minute cells with a more condensed peripheral layer . It now ...
Página
... minute swelling upon the funiculus . 37. The same more advanced . The contents of the statoblast are here seen to be divided into two distinct portions . 38. The same still further advanced . The division into two masses has disappeared ...
... minute swelling upon the funiculus . 37. The same more advanced . The contents of the statoblast are here seen to be divided into two distinct portions . 38. The same still further advanced . The division into two masses has disappeared ...
Otras ediciones - Ver todas
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 longitudinal 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