A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... detection ; while few objects are capable of affording greater pleasure than these beautiful little molluscoids when examined in a living state under a moderate power of the microscope . Notwithstanding the large proportion of species ...
... detection ; while few objects are capable of affording greater pleasure than these beautiful little molluscoids when examined in a living state under a moderate power of the microscope . Notwithstanding the large proportion of species ...
Página 3
... detected in England by Baker , who subsequently described it under the name of " Bellflower animal . " Both Trembley and Baker bestowed upon their new animal a careful and accurate examination , and have thus made us acquainted with a ...
... detected in England by Baker , who subsequently described it under the name of " Bellflower animal . " Both Trembley and Baker bestowed upon their new animal a careful and accurate examination , and have thus made us acquainted with a ...
Página 5
... detect the affinity between the Polyzoa and the Ascidić . Lamouroux's views , however , upon this point are exceedingly vague and incorrect ; the difference between the Polyzoa and the true radiate zoophytes never occurred to him , and ...
... detect the affinity between the Polyzoa and the Ascidić . Lamouroux's views , however , upon this point are exceedingly vague and incorrect ; the difference between the Polyzoa and the true radiate zoophytes never occurred to him , and ...
Página 12
... detected in the endocyst . In the species with bilateral lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 , 6 , v ) ; but it is generally impossible , in consequence of the increasing opacity of ...
... detected in the endocyst . In the species with bilateral lophophore , the fibres may be seen towards the apertures of the cells ( Pl . V , figs . 5 , 6 , v ) ; but it is generally impossible , in consequence of the increasing opacity of ...
Página 13
... detection under ordinary circumstances , and are first revealed only by the abnormal ( ? ) development of the peculiar corpuscles in their interior . These corpuscles are not confined to the endocyst , but are also found at the same ...
... detection under ordinary circumstances , and are first revealed only by the abnormal ( ? ) development of the peculiar corpuscles in their interior . These corpuscles are not confined to the endocyst , but are also found at the same ...
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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young