A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28Ray Society, 1856 - 119 páginas |
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Página 114
... Ehrenbergi , proposed for it by the learned Belgian naturalist in honour of its discoverer . P. Ehrenbergi is very widely distributed , and we can scarcely account for its having so long escaped notice , except by supposing that its ...
... Ehrenbergi , proposed for it by the learned Belgian naturalist in honour of its discoverer . P. Ehrenbergi is very widely distributed , and we can scarcely account for its having so long escaped notice , except by supposing that its ...
Página 115
... Ehrenbergi . These hybernacula are gemmæ , which , under the influence of a favorable temperature , would have grown into the ordinary lateral branches of the Polyzoon , but which towards the commencement of winter acquire a conical ...
... Ehrenbergi . These hybernacula are gemmæ , which , under the influence of a favorable temperature , would have grown into the ordinary lateral branches of the Polyzoon , but which towards the commencement of winter acquire a conical ...
Página
... Ehrenbergi . 10-16 . Successive stages of the development of the gemma in Lophopus crystallinus . 17. Cell from the ... Ehrenbergi . 25. Free spermatozoa of Paludicella Ehrenbergi . 26. A group of ova from the ovary of Alcyonella ...
... Ehrenbergi . 10-16 . Successive stages of the development of the gemma in Lophopus crystallinus . 17. Cell from the ... Ehrenbergi . 25. Free spermatozoa of Paludicella Ehrenbergi . 26. A group of ova from the ovary of Alcyonella ...
Otras ediciones - Ver todas
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James 1812-1898 Allman Sin vista previa disponible - 2021 |
A Monograph of the Fresh-Water Polyzoa: Including All the Known Species ... George James Allman Sin vista previa disponible - 2016 |
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 Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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