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 Ascidiæ . 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 Ascidiæ . 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 endo- cyst . 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 ...
... detected in the endo- cyst . 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 ...
Página 13
... detection under ordinary circumstances , and are first revealed only by the abnor- mal ( ) 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 abnor- mal ( ) 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
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