A Monograph of the Fresh-water Polyzoa, Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... described as distinct species may afterwards prove to be only varieties of one and the same specific group ; but as they all possess a real existence , and are truly distinct forms , it was thought necessary , especially in so small a ...
... described as distinct species may afterwards prove to be only varieties of one and the same specific group ; but as they all possess a real existence , and are truly distinct forms , it was thought necessary , especially in so small a ...
Página 1
... described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They are chiefly inhabitants of the sea , where they may be witnessed under numerous plant - like guises ; now spreading ...
... described by Thompson under the name of Polyzoa , and shortly after indicated by Ehrenberg under that of Bryozoa . They are chiefly inhabitants of the sea , where they may be witnessed under numerous plant - like guises ; now spreading ...
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... described by Marsigli were nothing more than the beautiful starry polypes of the coral , and he maintained that these were true animals of the same nature as the Actiniæ of the rocks , whose animality was sufficiently obvious to leave ...
... described by Marsigli were nothing more than the beautiful starry polypes of the coral , and he maintained that these were true animals of the same nature as the Actiniæ of the rocks , whose animality was sufficiently obvious to leave ...
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... described it under the name of " Bellflower animal . " † Both Trembley and Baker bestowed upon their new animal a careful and accurate examination , and have thus made us acquainted with a very remarkable type of structure - a type ...
... described it under the name of " Bellflower animal . " † Both Trembley and Baker bestowed upon their new animal a careful and accurate examination , and have thus made us acquainted with a very remarkable type of structure - a type ...
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... described the locomotive embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different from the hydroid polype of the Sertulariæ ; but he seems as yet to have had ...
... described the locomotive embryos of Flustræ ; he also gives an account of the animals of Flustra carbasea and F. foliacea , and shows them to be quite different from the hydroid polype of the Sertulariæ ; but he seems as yet to have had ...
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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 character cilia cœnæcium 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 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