A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 63
... fluviatile et des genres voisins . d'Hist . Nat . de Paris , ' iv , 1828 . CUVIER , Hist . des progrès des Sci . Nat . , ' tome ii . ' Mém . de la Soc . on closely allied Polyzoa , he has fallen far short HISTORY . 63.
... fluviatile et des genres voisins . d'Hist . Nat . de Paris , ' iv , 1828 . CUVIER , Hist . des progrès des Sci . Nat . , ' tome ii . ' Mém . de la Soc . on closely allied Polyzoa , he has fallen far short HISTORY . 63.
Página 64
... closely with those of Rösel , and he joins with this naturalist in denying the accuracy of Trembley's description of the digestive organs of the " Polype à Panache . " He does not admit the existence of distinct muscles , and maintains ...
... closely with those of Rösel , and he joins with this naturalist in denying the accuracy of Trembley's description of the digestive organs of the " Polype à Panache . " He does not admit the existence of distinct muscles , and maintains ...
Página 79
... closely resemble , are larger than those of any other fresh - water Polyzoon . They are also , with the same exception , the only ones having an orbicular shape . One face is a little more convex than the other . The annulus is wide ...
... closely resemble , are larger than those of any other fresh - water Polyzoon . They are also , with the same exception , the only ones having an orbicular shape . One face is a little more convex than the other . The annulus is wide ...
Página 89
... closely applied hexagonal or pentagonal orifices . The whole production now assumes the appearance of a spongy , honeycomb - like mass , and this has not unfrequently been mistaken for a fresh - water sponge . A vertical section shows ...
... closely applied hexagonal or pentagonal orifices . The whole production now assumes the appearance of a spongy , honeycomb - like mass , and this has not unfrequently been mistaken for a fresh - water sponge . A vertical section shows ...
Página 90
... closely adherent to one another until within a short distance of their terminations , when they become free . The ectocyst is dark brown , becoming rather abruptly lighter in the vicinity of the orifices , where the peculiar ...
... closely adherent to one another until within a short distance of their terminations , when they become free . The ectocyst is dark brown , becoming rather abruptly lighter in the vicinity of the orifices , where the peculiar ...
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