A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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... both in its natural size , and magnified , and I have never omitted to draw the
polypide as well as the cænoecium , believing that the latter will by itself convey
but a very imperfect idea of the real character of these beautiful little animals .
... both in its natural size , and magnified , and I have never omitted to draw the
polypide as well as the cænoecium , believing that the latter will by itself convey
but a very imperfect idea of the real character of these beautiful little animals .
Página 1
It is to these fresh - water species , which , independently of their 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 is to these fresh - water species , which , independently of their 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 .
Página 3
The investigations of Trembley and Baker , however , having clearly
demonstrated , in the “ Polype à Panache , ” all the essential characters of
polyzoal structure , must be viewed as marking out another most important epoch
in the progress of ...
The investigations of Trembley and Baker , however , having clearly
demonstrated , in the “ Polype à Panache , ” all the essential characters of
polyzoal structure , must be viewed as marking out another most important epoch
in the progress of ...
Página 4
... and the attention of naturalists was now chiefly directed to the comparison of
external characters for the determination of ... and involved the fundamental error
of assuming the external calcareous or horny covering as a character of primary ...
... and the attention of naturalists was now chiefly directed to the comparison of
external characters for the determination of ... and involved the fundamental error
of assuming the external calcareous or horny covering as a character of primary ...
Página 7
... and if to these characters we add the presence of true sexual organs in the
form of ovary and testis occupying some portion of the interior of the sac , and the
negative character of the absence of all vestige of a heart , we shall have
perhaps ...
... and if to these characters we add the presence of true sexual organs in the
form of ovary and testis occupying some portion of the interior of the sac , and the
negative character of the absence of all vestige of a heart , we shall have
perhaps ...
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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 admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella crown described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organs orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | Biblioteca Nacional de Austria |
| Digitalizado | 12 Mayo 2011 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |