A Monograph of the Fresh-water Polyzoa, Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... peculiar significance , and invest their study with a scientific interest which is scarcely surpassed by that of any other group of animals ; while the fresh - water species , by certain remarkable peculiarities of structure , throw an ...
... peculiar significance , and invest their study with a scientific interest which is scarcely surpassed by that of any other group of animals ; while the fresh - water species , by certain remarkable peculiarities of structure , throw an ...
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... peculiar to the fresh - water forms will only tend to illustrate and explain the structure of the marine ones ; so that the present monograph , in its anatomical relations , may be fairly regarded as a general treatise on polyzoal ...
... peculiar to the fresh - water forms will only tend to illustrate and explain the structure of the marine ones ; so that the present monograph , in its anatomical relations , may be fairly regarded as a general treatise on polyzoal ...
Página 1
... peculiar habitat , possess certain characters entitling them to be viewed as a group apart from the marine representatives of the class , that the present work is to be devoted . It will be well , however , before entering into the ...
... peculiar habitat , possess certain characters entitling them to be viewed as a group apart from the marine representatives of the class , that the present work is to be devoted . It will be well , however , before entering into the ...
Página 2
... peculiar habitation built by these creatures for their protection . But Peysonelle had few followers ; even Reaumur , to whom he had intrusted a commu- nication on this subject , with the intention of having it presented to the Academy ...
... peculiar habitation built by these creatures for their protection . But Peysonelle had few followers ; even Reaumur , to whom he had intrusted a commu- nication on this subject , with the intention of having it presented to the Academy ...
Página 8
... peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal . The terms now enumerated are such ...
... peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal . The terms now enumerated are such ...
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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 cœnćcium 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 hćmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnćus 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 ŕ 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