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 23
... minute as to defy our attempts at detection , and yet capable of permitting a passage of fluid ; some facts already recorded ( page 13 ) , would seem to point to the existence of a system of tubes in the substance of the endocyst ...
... minute as to defy our attempts at detection , and yet capable of permitting a passage of fluid ; some facts already recorded ( page 13 ) , would seem to point to the existence of a system of tubes in the substance of the endocyst ...
Página 29
... Here the perigastric fluid being no * Observations on the Minute Structure of some of the higher forms of Polypi , Philosophical Transactions , ' 1837 . longer pressed upon by the contraction of the endocyst , MUSCULAR SYSTEM . 29.
... Here the perigastric fluid being no * Observations on the Minute Structure of some of the higher forms of Polypi , Philosophical Transactions , ' 1837 . longer pressed upon by the contraction of the endocyst , MUSCULAR SYSTEM . 29.
Página 34
... minute tubercles , at first confined to the body of the lophophore ( Pl . XI , fig . 30 ° ) , and then extending along the arms , which at the same time acquire increased proportional length ; the tentacula gradually elongate themselves ...
... minute tubercles , at first confined to the body of the lophophore ( Pl . XI , fig . 30 ° ) , and then extending along the arms , which at the same time acquire increased proportional length ; the tentacula gradually elongate themselves ...
Página 35
... minute tubercle , projecting from the external walls of the cell , and filled with a granular parenchyma ( Pl . XI , fig . 1 ) . It now becomes elongated ( fig . 2 ) , and we soon find it noilowed out into a cavity , which communicates ...
... minute tubercle , projecting from the external walls of the cell , and filled with a granular parenchyma ( Pl . XI , fig . 1 ) . It now becomes elongated ( fig . 2 ) , and we soon find it noilowed out into a cavity , which communicates ...
Página 36
... minute tubercles ( fig . 6 ) , the rudiments of the future tentacula . When viewed laterally ( fig . 7 ) , the lophophore in this stage is seen to be decidedly bilateral , being prolonged towards the side where the rectum is to make its ...
... minute tubercles ( fig . 6 ) , the rudiments of the future tentacula . When viewed laterally ( fig . 7 ) , the lophophore in this stage is seen to be decidedly bilateral , being prolonged towards the side where the rectum is to make its ...
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 crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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