A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-3 de 28
Página 12
... whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of ...
... whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of ...
Página 50
... whole course in the Polyzoa is as invariably towards the neural or ganglionic side . To the uniformity of plan now attempted to be demonstrated among the various members of the molluscoid series , the curious tunicate genus ...
... whole course in the Polyzoa is as invariably towards the neural or ganglionic side . To the uniformity of plan now attempted to be demonstrated among the various members of the molluscoid series , the curious tunicate genus ...
Página 89
... whole surface seems covered with a whitish down , which a slight examination shows to be occasioned by the protrusion of innumerable polypides . When removed from the water , the polypides shrink back into their cells , and the surface ...
... whole surface seems covered with a whitish down , which a slight examination shows to be occasioned by the protrusion of innumerable polypides . When removed from the water , the polypides shrink back into their cells , and the surface ...
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