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 8
... Endocyst . § The sort of disc or stage which surrounds the mouth and bears the tentacula , I have called Lophophore . || The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The ...
... Endocyst . § The sort of disc or stage which surrounds the mouth and bears the tentacula , I have called Lophophore . || The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The ...
Página 11
... endocyst , which is always soft , transparent , and contractile ; and an external , the ectocyst , which varies greatly in character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig ...
... endocyst , which is always soft , transparent , and contractile ; and an external , the ectocyst , which varies greatly in character in the different genera . The endocyst ( Pl . III , fig . 7 ; V , figs . 5 , 6 ; IX , fig . 7 ; X , fig ...
Página 12
... endocyst . These are situated on its inner surface , where they constitute a well - marked layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating ...
... endocyst . These are situated on its inner surface , where they constitute a well - marked layer composed of a network of transverse and longitudinal fibres over the whole extent of the endocyst . I have even succeeded in separating ...
Página 13
... endocyst throughout its whole extent . They were not scattered at random through this membrane , but were contained in the interior of a system of tubes which formed a network in the substance of the endocyst ( Pl . II , fig . 13 ) ...
... endocyst throughout its whole extent . They were not scattered at random through this membrane , but were contained in the interior of a system of tubes which formed a network in the substance of the endocyst ( Pl . II , fig . 13 ) ...
Página 14
... endocyst . In Paludicella they acquire their maximum in development and constancy ; they occur here between every cell , and consist of an annular process , which projects transversely from the ectocyst into the interior of the cell ...
... endocyst . In Paludicella they acquire their maximum in development and constancy ; they occur here between every cell , and consist of an annular process , which projects transversely from the ectocyst into the interior of the cell ...
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