A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 11-15 de 19
Página 31
... fibre in the higher animals . The existence of striated fibre in the Polyzoa was first noticed by Milne - Edwards , who detected it in Eschara ; * and Mr. Busk has since described and figured the same form of tissue in Anguinaria ...
... fibre in the higher animals . The existence of striated fibre in the Polyzoa was first noticed by Milne - Edwards , who detected it in Eschara ; * and Mr. Busk has since described and figured the same form of tissue in Anguinaria ...
Página 36
... fibres , the rudiments of the retractor of the polypide , may now be plainly seen extending from just behind the lophophore to the walls of the cell . The body of the polypide at the spot directly opposite to the rudimental crown of ...
... fibres , the rudiments of the retractor of the polypide , may now be plainly seen extending from just behind the lophophore to the walls of the cell . The body of the polypide at the spot directly opposite to the rudimental crown of ...
Página 49
... fibres , which give to this tunic its characteristic contractility . Now , these muscles are exactly represented by equivalent fibres , which are developed in the homologous tunic or endocyst of the Polyzoa , and constitute the ...
... fibres , which give to this tunic its characteristic contractility . Now , these muscles are exactly represented by equivalent fibres , which are developed in the homologous tunic or endocyst of the Polyzoa , and constitute the ...
Página 55
... the vessel f results . h . Vessel conveying the blood forwards towards the crescentic disc and tentacula . ii . Longi- tudinal muscular fibres in stem . 56 ZOOGRAPHY . 1 . HISTORY AND BIBLIOGRAPHY . We. HOMOLOGIES . 55.
... the vessel f results . h . Vessel conveying the blood forwards towards the crescentic disc and tentacula . ii . Longi- tudinal muscular fibres in stem . 56 ZOOGRAPHY . 1 . HISTORY AND BIBLIOGRAPHY . We. HOMOLOGIES . 55.
Página 57
... fibres are visible in the stem . The nervous system was not detected ; and , as it was impossible to expose the posterior part of the animal without running the risk of its entire destruction , much of its organization still remains ...
... fibres are visible in the stem . The nervous system was not detected ; and , as it was impossible to expose the posterior part of the animal without running the risk of its entire destruction , much of its organization still remains ...
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