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 11
... species , is but partial , a portion of the endocyst , as we shall afterwards more particularly see , remaining in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion ...
... species , is but partial , a portion of the endocyst , as we shall afterwards more particularly see , remaining in a permanently inverted condition ; in this respect differing remarkably from the marine species , in which the evertion ...
Página 12
Including All the Known Species, Both British and Foreign George James Allman. consist almost entirely of bodies exactly ... species with bilateral lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 ...
Including All the Known Species, Both British and Foreign George James Allman. consist almost entirely of bodies exactly ... species with bilateral lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 ...
Página 13
... species , composed of a tough pregamentaceous brown membrane , strength- ened by the deposition of irregularly formed siliceous and other earthy particles , which , except towards the orifices , where these particles are deficient ...
... species , composed of a tough pregamentaceous brown membrane , strength- ened by the deposition of irregularly formed siliceous and other earthy particles , which , except towards the orifices , where these particles are deficient ...
Página 14
... species of fresh - water Polyzoa , transverse septa exist between the cells . They are formed both by the ectocyst and endocyst . In Paludicella they acquire their maximum in development and constancy ; they occur here between every ...
... species of fresh - water Polyzoa , transverse septa exist between the cells . They are formed both by the ectocyst and endocyst . In Paludicella they acquire their maximum in development and constancy ; they occur here between every ...
Página 15
Including All the Known Species, Both British and Foreign George James Allman. itself is imperfect , admitting of a ... species in which the lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ...
Including All the Known Species, Both British and Foreign George James Allman. itself is imperfect , admitting of a ... species in which the lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ...
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