A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... specimens have thus passed beneath the dissecting needle . Of all the known fresh - water genéra there are but two , namely , Pectinatella and Urnatella , which I have not yet had an opportunity of examining in a living condition . Both ...
... specimens have thus passed beneath the dissecting needle . Of all the known fresh - water genéra there are but two , namely , Pectinatella and Urnatella , which I have not yet had an opportunity of examining in a living condition . Both ...
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... specimens , and by much valuable information , have kindly assisted me in the preparation of this monograph , I beg once for all to return my best thanks . My acknowledgments are especially due to Mr. Bowerbank , Mr. Quekett , Mr. Busk ...
... specimens , and by much valuable information , have kindly assisted me in the preparation of this monograph , I beg once for all to return my best thanks . My acknowledgments are especially due to Mr. Bowerbank , Mr. Quekett , Mr. Busk ...
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... specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent . They ...
... specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent . They ...
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... specimen of Alcyonella fungosa be cut into small pieces , under water , in the month of July or August , the ciliated embryos will be liberated in abundance , and may be examined with facility . Gemmation . The development of gemmæ has ...
... specimen of Alcyonella fungosa be cut into small pieces , under water , in the month of July or August , the ciliated embryos will be liberated in abundance , and may be examined with facility . Gemmation . The development of gemmæ has ...
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... specimen had developed itself , and to which they are now connected in lines ( Pl . VII , figs . 5 , 10 ) through the medium of a portion of the old cell in which they had been produced . I am unable to state whether the origin and ...
... specimen had developed itself , and to which they are now connected in lines ( Pl . VII , figs . 5 , 10 ) through the medium of a portion of the old cell in which they had been produced . I am unable to state whether the origin and ...
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