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 30
... in detecting the striated condition of the fibre . It has been already shown ( p . 12 ) that the fibres occurring in the endocyst ( parietal muscles ) are composed of very distinct fusiform nucleated cells 30 MUSCULAR SYSTEM .
... in detecting the striated condition of the fibre . It has been already shown ( p . 12 ) that the fibres occurring in the endocyst ( parietal muscles ) are composed of very distinct fusiform nucleated cells 30 MUSCULAR SYSTEM .
Página 32
... already become free ( E ) , may be seen carried about in the fluid of the perigastric space , and thus brought in contact with the ovary . In Paludicella , the ovary occupies the same position as in Alcyonella , forming an irregularly ...
... already become free ( E ) , may be seen carried about in the fluid of the perigastric space , and thus brought in contact with the ovary . In Paludicella , the ovary occupies the same position as in Alcyonella , forming an irregularly ...
Página 33
... already described as attached to the fundus of the stomach and bottom of the cell in Alcyonella . The testicle in Paludicella is an irregularly lobed mass ( Pl . X , figs . 3 , 4 , x ) , attached , like the ovary , to the inner surface ...
... already described as attached to the fundus of the stomach and bottom of the cell in Alcyonella . The testicle in Paludicella is an irregularly lobed mass ( Pl . X , figs . 3 , 4 , x ) , attached , like the ovary , to the inner surface ...
Página 35
... already mentioned , but we now find that these bands , which must not be confounded with the permanent parieto - vaginal bands of the adult , have disappeared , and the evagination has become complete ( Pl . XI , fig . 34 ) . The ...
... already mentioned , but we now find that these bands , which must not be confounded with the permanent parieto - vaginal bands of the adult , have disappeared , and the evagination has become complete ( Pl . XI , fig . 34 ) . The ...
Página 36
... already seen in the lining membrane of the cell ; these are chiefly collected near its proximal end ( fig . 6 ) , and are to become the parietal muscles of the adult . The body of the polypide continues to elongate itself ( fig . 8 ) ...
... already seen in the lining membrane of the cell ; these are chiefly collected near its proximal end ( fig . 6 ) , and are to become the parietal muscles of the adult . The body of the polypide continues to elongate itself ( fig . 8 ) ...
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