A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 |
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Página 13
They were not scattered at random through this membrane, but were contained in
the interior of a system of tubes which formed a network in the substance of the
endocyst (Pl. II, fig. 13). They are about the oth of an inch in the longer diameter, ...
They were not scattered at random through this membrane, but were contained in
the interior of a system of tubes which formed a network in the substance of the
endocyst (Pl. II, fig. 13). They are about the oth of an inch in the longer diameter, ...
Página 86
It is quite true that, in its young state, Alcyonella has its tubes distinct, creeping
along the surface of the supporting body, and in this condition, I admit that it
cannot be distinguished from a Plumatella, but it is only in its early youth that it
presents ...
It is quite true that, in its young state, Alcyonella has its tubes distinct, creeping
along the surface of the supporting body, and in this condition, I admit that it
cannot be distinguished from a Plumatella, but it is only in its early youth that it
presents ...
Página 89
When removed from the water, the polypides shrink back into their cells, and the
surface then seems covered with a gelatinous investment, caused by the soft,
papilla-like, extremities of the tubes. These extremities contract no adhesion to ...
When removed from the water, the polypides shrink back into their cells, and the
surface then seems covered with a gelatinous investment, caused by the soft,
papilla-like, extremities of the tubes. These extremities contract no adhesion to ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James Allman Vista de fragmentos - 1856 |
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 coenoecium crescentic Cristatella Cristatella mucedo d'eau douce described disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid Flustrae fresh-water Polyzoa funiculus ganglion gemmae genera genus Gervais Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus organ orifice Original figures ovary ovum Pallas 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 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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | Universidad de Illinois en Urbana-Champaign |
| Digitalizado | 13 Oct. 2015 |
| Largo | 119 páginas |
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