A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-5 de 18
Página
... existence of published drawings whenever they were to be found , and under the description of these species have given a woodcut copy of the drawing . The zoographical portion of the volume has thus been rendered as complete as possible ...
... existence of published drawings whenever they were to be found , and under the description of these species have given a woodcut copy of the drawing . The zoographical portion of the volume has thus been rendered as complete as possible ...
Página
... existence , and are truly distinct forms , it was thought necessary , especially in so small a group as the present , to bring them definitely before the student , even though the future discovery of intermediate forms may disentitle ...
... existence , and are truly distinct forms , it was thought necessary , especially in so small a group as the present , to bring them definitely before the student , even though the future discovery of intermediate forms may disentitle ...
Página 4
... existence . It was not yet suspected that among these curious " zoophytes , " so like one another in external form , there were still two totally distinct types of animal organization ; and the attention of naturalists was now chiefly ...
... existence . It was not yet suspected that among these curious " zoophytes , " so like one another in external form , there were still two totally distinct types of animal organization ; and the attention of naturalists was now chiefly ...
Página 15
... existence in any of the tissues of the Polyzoa , either fresh - water or marine . I observed , however , that in one instance the ectocyst of Plumatella repens , after lying for several weeks in a concentrated solution of caustic potash ...
... existence in any of the tissues of the Polyzoa , either fresh - water or marine . I observed , however , that in one instance the ectocyst of Plumatella repens , after lying for several weeks in a concentrated solution of caustic potash ...
Página 23
... existence of a system of tubes in the substance of the endocyst , which may afford the necessary channels of communication , or it may be that it is in simple transudation through the walls of the alimentary canal that we are to seek ...
... existence of a system of tubes in the substance of the endocyst , which may afford the necessary channels of communication , or it may be that it is in simple transudation through the walls of the alimentary canal that we are to seek ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
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 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 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