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 79
... specimens have since been found by M. Gervais , and I have met with them in abundance in Ireland , and in other ... specimens , is light bluish - green . The largest specimens measure about two inches in length and a quarter of an inch ...
... specimens have since been found by M. Gervais , and I have met with them in abundance in Ireland , and in other ... specimens , is light bluish - green . The largest specimens measure about two inches in length and a quarter of an inch ...
Página 85
... specimens have the endocyst deeply lobed , so as to cause it to present a kind of palmate appearance . The intervals of the lobes , however , are nearly filled by the gelatinoid ectocyst . Young specimens are not lobed , and then they ...
... specimens have the endocyst deeply lobed , so as to cause it to present a kind of palmate appearance . The intervals of the lobes , however , are nearly filled by the gelatinoid ectocyst . Young specimens are not lobed , and then they ...
Página 115
... specimens of Paludicella collected in Britain . P. Ehrenbergi is an exceedingly timid little animal , and a specimen may be for hours under observation before the polypides will venture to issue from their cells , and then it is often ...
... specimens of Paludicella collected in Britain . P. Ehrenbergi is an exceedingly timid little animal , and a specimen may be for hours under observation before the polypides will venture to issue from their cells , and then it is often ...
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 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 longitudinal 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