A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Página 79
... stones and in dark recesses , Cristatella loves to expose itself to the full light and warmth of the sun . It differs , moreover , from all the Polyzoa with whose habits I am acquainted , in the constant pleasure it takes in maintaining ...
... stones and in dark recesses , Cristatella loves to expose itself to the full light and warmth of the sun . It differs , moreover , from all the Polyzoa with whose habits I am acquainted , in the constant pleasure it takes in maintaining ...
Página 88
... stones , floating timber , and submerged branches of trees ; loving obscure places . LOCALITIES . - British : Regent's Canal , London , attached to the sides of the docks , abundant ; Chelmar Canal , Essex , abundant . G. J. A. - London ...
... stones , floating timber , and submerged branches of trees ; loving obscure places . LOCALITIES . - British : Regent's Canal , London , attached to the sides of the docks , abundant ; Chelmar Canal , Essex , abundant . G. J. A. - London ...
Página 89
... stones , pieces of wood , fresh - water shells , & c . The masses frequently acquire a considerable size , weighing upwards of a pound . They are often irregularly lobed , and when they grow upon the surface of a cylindrical body , as a ...
... stones , pieces of wood , fresh - water shells , & c . The masses frequently acquire a considerable size , weighing upwards of a pound . They are often irregularly lobed , and when they grow upon the surface of a cylindrical body , as a ...
Página 98
... stones , and to the stems of aquatic plants , and under side of floating leaves , avoiding the light . LOCALITIES . - British : Generally distributed throughout England and Ireland , in some places very abundant . In Scotland it occurs ...
... stones , and to the stems of aquatic plants , and under side of floating leaves , avoiding the light . LOCALITIES . - British : Generally distributed throughout England and Ireland , in some places very abundant . In Scotland it occurs ...
Página 99
... stone or other object to which it happens to be attached , as long as this affords it sufficient surface for adhesion ... stones , or in such other situations as are not exposed to the direct influence of daylight . The polypides are ...
... stone or other object to which it happens to be attached , as long as this affords it sufficient surface for adhesion ... stones , or in such other situations as are not exposed to the direct influence of daylight . The polypides are ...
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