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 13
... funiculus , which , as will be afterwards shown , connects the fundus of the stomach with the walls of the cells . In the endocyst alone , however , do they appear to be contained in distinct canals . In Cristatella , where the endocyst ...
... funiculus , which , as will be afterwards shown , connects the fundus of the stomach with the walls of the cells . In the endocyst alone , however , do they appear to be contained in distinct canals . In Cristatella , where the endocyst ...
Página 32
... funiculus . The testicle is composed of a mass of spherical cells , each of which contains within it numerous secondary cells , " vesicles of evolution . " ( Pl . XI , fig . 17 ) . The visible contents of the vesicles of evolution ...
... funiculus . The testicle is composed of a mass of spherical cells , each of which contains within it numerous secondary cells , " vesicles of evolution . " ( Pl . XI , fig . 17 ) . The visible contents of the vesicles of evolution ...
Página 33
... funiculus ( Pl . X , figs . 3 , 4 , 0 ) , similar in all respects to the funiculus of Alcyonella , and , except in position , to the anterior funiculus of the present genus . The testicle was coexistent with the ovary , and was loaded ...
... funiculus ( Pl . X , figs . 3 , 4 , 0 ) , similar in all respects to the funiculus of Alcyonella , and , except in position , to the anterior funiculus of the present genus . The testicle was coexistent with the ovary , and was loaded ...
Página 34
... funiculus may be seen extending from the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides have , at first , no communication with the exterior , but at an early stage the tentacular sheath , with the ...
... funiculus may be seen extending from the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides have , at first , no communication with the exterior , but at an early stage the tentacular sheath , with the ...
Página 36
... funiculus ; the tentacula continue to increase in length ; the lophophore loses its bilaterality and becomes orbicular , and we now ( fig . 9 ) find little wanting to give to the polypide and its cell the form presented by the adult ...
... funiculus ; the tentacula continue to increase in length ; the lophophore loses its bilaterality and becomes orbicular , and we now ( fig . 9 ) find little wanting to give to the polypide and its cell the form presented by the adult ...
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