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 39
... orifice through which the statoblasts or ova may escape from the cells ; and yet , from the large size and incompressible nature of the former , such an orifice , were it present , could hardly escape detection . Meyen , * it is true ...
... orifice through which the statoblasts or ova may escape from the cells ; and yet , from the large size and incompressible nature of the former , such an orifice , were it present , could hardly escape detection . Meyen , * it is true ...
Página 40
... orifice of the cell . In two species of fresh - water Polyzoa , Plumatella emarginata and Alcyonella Benedeni , I have observed , besides the ordinary statoblasts , another kind which is characterised by some peculiarities . In both ...
... orifice of the cell . In two species of fresh - water Polyzoa , Plumatella emarginata and Alcyonella Benedeni , I have observed , besides the ordinary statoblasts , another kind which is characterised by some peculiarities . In both ...
Página 43
... orifice of this sac are homologous with the tentacula of the Polyzoon . Under the other head it is asserted that the respiratory sac of the Ascidian is homologous with the tentacular crown of the Polyzoa . I have carefully examined all ...
... orifice of this sac are homologous with the tentacula of the Polyzoon . Under the other head it is asserted that the respiratory sac of the Ascidian is homologous with the tentacular crown of the Polyzoa . I have carefully examined all ...
Página 44
... orifice . f . Cloacal orifice . g . Transverse respiratory bars . h . Longitudinal respiratory bars . i . Branchial sinus . k . Thoracic sinus . 11. Proper membrane of respiratory sac . Mouth . o . Esophagus . p . Stomach . entrance of ...
... orifice . f . Cloacal orifice . g . Transverse respiratory bars . h . Longitudinal respiratory bars . i . Branchial sinus . k . Thoracic sinus . 11. Proper membrane of respiratory sac . Mouth . o . Esophagus . p . Stomach . entrance of ...
Página 45
... Orifice of cell . i . Lophophore . 1. Calyx . m . Epistome . n . Mouth . o . Esophagus . p . Stomach . q . Intestine . r . Anus . s . Cavity of tantacular sheath . u . Ganglion . w . Retractor muscle . * In figs . 6-11 , the same ...
... Orifice of cell . i . Lophophore . 1. Calyx . m . Epistome . n . Mouth . o . Esophagus . p . Stomach . q . Intestine . r . Anus . s . Cavity of tantacular sheath . u . Ganglion . w . Retractor muscle . * In figs . 6-11 , the same ...
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