A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... figure representing some of the more important features in the structure of this remarkable Polyzoon . All the figures ... original drawings as faithfully as possible . In every case I have given a figure of the species both in its natural ...
... figure representing some of the more important features in the structure of this remarkable Polyzoon . All the figures ... original drawings as faithfully as possible . In every case I have given a figure of the species both in its natural ...
Página 14
... first sight , conveys the impression of being destitute of an ectocyst , and having the place of this tunic supplied ... figure , * while M. Van Beneden believes it to be an acci- dental investment acquired by the animal during ...
... first sight , conveys the impression of being destitute of an ectocyst , and having the place of this tunic supplied ... figure , * while M. Van Beneden believes it to be an acci- dental investment acquired by the animal during ...
Página 19
... first , a sort of stage or disc ( the lophophore ) ( Pl . II , fig . 24 ; IX ... figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella ... first sight orbicular , is truly bilateral and phylactolæmatous , but ...
... first , a sort of stage or disc ( the lophophore ) ( Pl . II , fig . 24 ; IX ... figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella ... first sight orbicular , is truly bilateral and phylactolæmatous , but ...
Página 37
... first appearance of the bud in Lophopus is seen near the orifice of the cell ... figure ( fig . 12 ) , and it is now evident that the lophophore has begun to ... figure , and enclosed in a horny shell , which consists of two concavo ...
... first appearance of the bud in Lophopus is seen near the orifice of the cell ... figure ( fig . 12 ) , and it is now evident that the lophophore has begun to ... figure , and enclosed in a horny shell , which consists of two concavo ...
Página 48
... figure , which is rendered still more decided by the presence of the epistome . In the marine genus Lagenella , the ... first sight , not appear quite so manifest ; it is , however , equally * See Huxley , " Observations upon the Anatomy ...
... figure , which is rendered still more decided by the presence of the epistome . In the marine genus Lagenella , the ... first sight , not appear quite so manifest ; it is , however , equally * See Huxley , " Observations upon the Anatomy ...
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 crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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