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 91
... closely adherent by one face to the surface of the body on which it is developed . The largest specimens I have met with measure about half an inch in their longest direction . The ectocyst is dark brown , becoming abruptly lighter ...
... closely adherent by one face to the surface of the body on which it is developed . The largest specimens I have met with measure about half an inch in their longest direction . The ectocyst is dark brown , becoming abruptly lighter ...
Página 93
... closely adherent , creeping along the surface of various sub- merged bodies , to which the branches are attached in their entire length . ( Pl . V , figs . 1 , 2. ) Variation B. - Conocium attached only towards the origin , branches ...
... closely adherent , creeping along the surface of various sub- merged bodies , to which the branches are attached in their entire length . ( Pl . V , figs . 1 , 2. ) Variation B. - Conocium attached only towards the origin , branches ...
Página 98
... closely adherent throughout its entire length to the surface on which it is developed , and forms elegant dendritic , or confervoid growths , radiating from a common centre . In the second , ( var . ß , ) it will be found fixed to ...
... closely adherent throughout its entire length to the surface on which it is developed , and forms elegant dendritic , or confervoid growths , radiating from a common centre . In the second , ( var . ß , ) it will be found fixed to ...
Página 99
... closely adherent to the stone or other object to which it happens to be attached , as long as this affords it sufficient surface for adhesion , but becoming free , and assuming the form of the second variation as soon as , in the ...
... closely adherent to the stone or other object to which it happens to be attached , as long as this affords it sufficient surface for adhesion , but becoming free , and assuming the form of the second variation as soon as , in the ...
Página 101
... closely resembling the young state of this species before the conocium has acquired the more decidedly tubular condition of the adult . 4. Plumatella vesicularis , Leidy . Specific character . " Conocium radiating and branched ...
... closely resembling the young state of this species before the conocium has acquired the more decidedly tubular condition of the adult . 4. Plumatella vesicularis , Leidy . Specific character . " Conocium radiating and branched ...
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