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 24
... connected with some error of observation . I have , however , most distinctly seen them on the inner surface of the upper part of the tentacular sheath in certain species during the exserted state of the polypide ( Pl . IV , fig . 4 ) ...
... connected with some error of observation . I have , however , most distinctly seen them on the inner surface of the upper part of the tentacular sheath in certain species during the exserted state of the polypide ( Pl . IV , fig . 4 ) ...
Página 27
... connection with the histology of the alimentary canal , and need not be further referred to here . b . Muscles of Paludicella . The muscular system of Paludicella differs in some important points from that of the species with bilateral ...
... connection with the histology of the alimentary canal , and need not be further referred to here . b . Muscles of Paludicella . The muscular system of Paludicella differs in some important points from that of the species with bilateral ...
Página 31
... connection with it . In Cristatella , Lophopus , and other genera with crescentic lophophores , the ganglion may be seen giving off from each side a rather thick chord ( Pl . II , fig . 24 , a ) which immediately enters the tubular arms ...
... connection with it . In Cristatella , Lophopus , and other genera with crescentic lophophores , the ganglion may be seen giving off from each side a rather thick chord ( Pl . II , fig . 24 , a ) which immediately enters the tubular arms ...
Página 33
... connection at this place with the ovary , is a cylindrical flexible chord ( anterior funiculus ) ( Pl . X , figs . 3 ... connected with the stomach by a cylindrical chord , or posterior funiculus ( Pl . X , figs . 3 , 4 , 0 ) , similar ...
... connection at this place with the ovary , is a cylindrical flexible chord ( anterior funiculus ) ( Pl . X , figs . 3 ... connected with the stomach by a cylindrical chord , or posterior funiculus ( Pl . X , figs . 3 , 4 , 0 ) , similar ...
Página 36
... connected by a short , thick , fleshy mass , with the walls of the cell . Circular fibres may have been already seen in the lining membrane of the cell ; these are chiefly collected near its proximal end ( fig . 6 ) , and are to become ...
... connected by a short , thick , fleshy mass , with the walls of the cell . Circular fibres may have been already seen in the lining membrane of the cell ; these are chiefly collected near its proximal end ( fig . 6 ) , and are to become ...
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