A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 16-20 de 27
Página 85
... transparent , the endocyst and polypides are pale brownish - yellow . The statoblasts are larger than those of any other fresh - water Polyzoon , except Cris- tatella . They are of an elliptical form , with the long diameter prolonged ...
... transparent , the endocyst and polypides are pale brownish - yellow . The statoblasts are larger than those of any other fresh - water Polyzoon , except Cris- tatella . They are of an elliptical form , with the long diameter prolonged ...
Página 86
... transparent longitudinal furrow running along the length of each tube , commencing in the vicinity of the orifice as a triangular notch - like space , and passing into a prominent keel as * In my Synopsis , published in the ' Annals of ...
... transparent longitudinal furrow running along the length of each tube , commencing in the vicinity of the orifice as a triangular notch - like space , and passing into a prominent keel as * In my Synopsis , published in the ' Annals of ...
Página 89
... transparent ; in dead specimens they shrivel up and disappear , and then the surface of the mass presents a multitude of closely applied hexagonal or pentagonal orifices . The whole production now assumes the appearance of a spongy ...
... transparent ; in dead specimens they shrivel up and disappear , and then the surface of the mass presents a multitude of closely applied hexagonal or pentagonal orifices . The whole production now assumes the appearance of a spongy ...
Página 90
... transparent , and colour- less membrane . In extreme retraction , the papilliform terminations are entirely withdrawn into the remainder of the tube . The statoblasts are of two kinds - free , and adherent . The free statoblasts are ...
... transparent , and colour- less membrane . In extreme retraction , the papilliform terminations are entirely withdrawn into the remainder of the tube . The statoblasts are of two kinds - free , and adherent . The free statoblasts are ...
Página 91
... transparent line along the free surface of the tubes , giving them the appearance of being slit along one side . The polypides have about forty tentacula , and the margin of the calyciform membrane is distinctly festooned . I have not ...
... transparent line along the free surface of the tubes , giving them the appearance of being slit along one side . The polypides have about forty tentacula , and the margin of the calyciform membrane is distinctly festooned . I have not ...
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