A Monograph of the Freshwater Polyzoa, Including All the Known Species, Both British and Foreign |
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Página 8
... names of Polypary and Polypidome, I have applied the term Canacium.t The
coenoecium is composed almost universally of two perfectly distinct tunics; to the
external I have given the name of Ectocyst, { and to the internal that of Endocyst.
... names of Polypary and Polypidome, I have applied the term Canacium.t The
coenoecium is composed almost universally of two perfectly distinct tunics; to the
external I have given the name of Ectocyst, { and to the internal that of Endocyst.
Página 11
The coenoecium, in every case, except in Cristatella, is composed of two distinct
membranes, which must be carefully distinguished from one another—an internal
, the endocyst, which is always soft, transparent, and contractile; and an ...
The coenoecium, in every case, except in Cristatella, is composed of two distinct
membranes, which must be carefully distinguished from one another—an internal
, the endocyst, which is always soft, transparent, and contractile; and an ...
Página 17
It may, however, be easily enough made out in the different genera. Wherever I
have had a good opportunity of examining it, I have succeeded in detecting in the
stomach three distinct layers. Internally is a yellowish-brown layer (Pl. III, fig.
It may, however, be easily enough made out in the different genera. Wherever I
have had a good opportunity of examining it, I have succeeded in detecting in the
stomach three distinct layers. Internally is a yellowish-brown layer (Pl. III, fig.
Página 18
The fundus of the stomach appears to differ from the rest of the alimentary canal
in structure and function; the well-defined longitudinal rugae and deep brown
colour of the internal layer of the stomach nearly disappear in it, and, during the ...
The fundus of the stomach appears to differ from the rest of the alimentary canal
in structure and function; the well-defined longitudinal rugae and deep brown
colour of the internal layer of the stomach nearly disappear in it, and, during the ...
Página 20
The internal layer is a delicate transparent membrane, in which I could detect no
trace of approximated at their extremities, and thus, instead of constituting an
open crescent, they form a ring enclosing a space which embraces within it the ...
The internal layer is a delicate transparent membrane, in which I could detect no
trace of approximated at their extremities, and thus, instead of constituting an
open crescent, they form a ring enclosing a space which embraces within it the ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance attached become Beneden bodies branches branchial British canal cavity cell characters cilia closely coenoecium complete condition connected consists constitutes contained continuous 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 Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young
Información bibliográfica
| Título | A Monograph of the Freshwater Polyzoa, Including All the Known Species, Both British and Foreign Volumen18 de ¬The Ray Society |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Exportar cita | BiBTeX EndNote RefMan |