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 13
... tubes already existing for their reception . It would follow from this that the presence of a reticulated system of tubes in the substance of the endocyst is the normal condition of this tunic , but from the delicacy of these tubes ...
... tubes already existing for their reception . It would follow from this that the presence of a reticulated system of tubes in the substance of the endocyst is the normal condition of this tunic , but from the delicacy of these tubes ...
Página 89
... tubes . These extremities contract no adhesion to one another , like the rest of the tubes , and the ectocyst , as it passes over them , becomes very delicate and transparent ; in dead specimens they shrivel up and disappear , and then ...
... tubes . These extremities contract no adhesion to one another , like the rest of the tubes , and the ectocyst , as it passes over them , becomes very delicate and transparent ; in dead specimens they shrivel up and disappear , and then ...
Página 90
... tubes begins . When withdrawn from the water , the tubes seem terminated by a little papilliform body , formed by the endocyst , over which the ectocyst is continued as a very delicate , transparent , and colour- less membrane . In ...
... tubes begins . When withdrawn from the water , the tubes seem terminated by a little papilliform body , formed by the endocyst , over which the ectocyst is continued as a very delicate , transparent , and colour- less membrane . In ...
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