A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 32
Página 10
... nearly so ; no epistome . GYMNOLEMATA . † Polypide only partially re- tractile ? Polypide completely retractile ; evagination of tentacular sheath imperfect . Polypide completely retractile ; evagination perfect ; orifice of cell ...
... nearly so ; no epistome . GYMNOLEMATA . † Polypide only partially re- tractile ? Polypide completely retractile ; evagination of tentacular sheath imperfect . Polypide completely retractile ; evagination perfect ; orifice of cell ...
Página 13
... nearly the entire corpuscle ( fig . 15 ) . The situation of these bodies in a tubular network in the substance of the endocyst is a fact of great interest . It is nearly certain that whatever may have been the origin of the corpuscles ...
... nearly the entire corpuscle ( fig . 15 ) . The situation of these bodies in a tubular network in the substance of the endocyst is a fact of great interest . It is nearly certain that whatever may have been the origin of the corpuscles ...
Página 15
... nearly colourless , without in any way altering its form , all which properties are among the essential characteristics of chitine , which would thus seem to replace in the entocyst of the Polyzoa the cellulose of the test of the ...
... nearly colourless , without in any way altering its form , all which properties are among the essential characteristics of chitine , which would thus seem to replace in the entocyst of the Polyzoa the cellulose of the test of the ...
Página 16
... nearly cylindrical form ; but it is longer and wider than the cardiac cavity with which its axis is nearly continuous ; it terminates below in a rounded cul - de - sac ; to distinguish it from the other , I shall call it the pyloric ...
... nearly cylindrical form ; but it is longer and wider than the cardiac cavity with which its axis is nearly continuous ; it terminates below in a rounded cul - de - sac ; to distinguish it from the other , I shall call it the pyloric ...
Página 17
... nearly cylindrical figure ; from its upper extremity arises the intestine ( ) . This tube presents , just after its origin , a wide dilation , and then suddenly con- tracting , continues as a narrow cylindrical canal to its termination ...
... nearly cylindrical figure ; from its upper extremity arises the intestine ( ) . This tube presents , just after its origin , a wide dilation , and then suddenly con- tracting , continues as a narrow cylindrical canal to its termination ...
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