A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 6-10 de 28
Página 24
... similar ; eight distinct sets may be considered as more or less positively demonstrated . ( 1. ) Retractor Muscles of the Polypide . These , which are the largest and most powerful muscles of the animal , consist of two fasciculi ( Pl ...
... similar ; eight distinct sets may be considered as more or less positively demonstrated . ( 1. ) Retractor Muscles of the Polypide . These , which are the largest and most powerful muscles of the animal , consist of two fasciculi ( Pl ...
Página 31
... similar filaments to the tentacula placed upon the inner margin . I have thus traced it back to the base of the arms , but have here failed in my attempts to follow it further ; it is , however , highly probable that it passes across ...
... similar filaments to the tentacula placed upon the inner margin . I have thus traced it back to the base of the arms , but have here failed in my attempts to follow it further ; it is , however , highly probable that it passes across ...
Página 33
... similar in all respects to the funiculus of Alcyonella , and , except in position , to the anterior funiculus of the present genus . The testicle was coexistent with the ovary , and was loaded with spermatozoa , multitudes of which ...
... similar in all respects to the funiculus of Alcyonella , and , except in position , to the anterior funiculus of the present genus . The testicle was coexistent with the ovary , and was loaded with spermatozoa , multitudes of which ...
Página 34
... similar to that by which new polypides are produced by gemmation from the walls of the endocystal cavity in the adult . The gemmation of the first polypide is immediately followed by that of another close beside it ( Pl . XI , fig . 31 ) ...
... similar to that by which new polypides are produced by gemmation from the walls of the endocystal cavity in the adult . The gemmation of the first polypide is immediately followed by that of another close beside it ( Pl . XI , fig . 31 ) ...
Página 35
... similar developmental phenomena ; the ciliated larva , however , in this species , differs from that just described , in having its polypide single ( Pl . XI , fig . 35 ) . If a specimen of Alcyonella fungosa be cut into small pieces ...
... similar developmental phenomena ; the ciliated larva , however , in this species , differs from that just described , in having its polypide single ( Pl . XI , fig . 35 ) . If a specimen of Alcyonella fungosa be cut into small pieces ...
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