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Full text : Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften Sitzungsberichte der mathematisch-naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften, Wien, 1. Band, (Jahrgang 1848)

Foraminifera  monostegia.

SOI

IV.  Arcella  ehrenberg.
Corpus  e  lorica  discoidea,  depressa  apertura  ventrali  eentrali,  processus
  variabiles  numerosos  v.  ramosos  exerens.
1.  Arcella  vulgaris  ehrenberg.
Lorica  campanulato  —  orbicularis,  hemisphaerica  v.  dorso  umbonata,
Iaevis,  e  granulis  minimis  seriatis  constituta,  flava  v.  rufo-fusca,
processibus  hyalinis.  —Longit.  y l00 — 1 / 10 w .
Arcella  vulgaris  Ehrenberg  :  Infusionsth.  133.  Tab.  IX.  5.  —  Mess  :  Beitr.
z.  Fauna  d.  Infus.  31.  —  Dujardin  :  Hist.  nat.  des  Zoophyt.  (Infus.)
247.  Tab.  II.  3—5.
Habitaculum.  Berolini  omni  anni  tempore,  et  Tobolsk  in  Sibiria.
Julio  (Ehrenberg).  —  Vindobonae  vario  anni  tempore  (Czermak
  et  Riess).  Parisiis,  Januario  (Dujardin).
2.  Arcella  aeuleata  ehrenberg.
Lorica,  hemisphaerica,  soepe  difformis  margine  aeuleata,  e  fibris
bacillaribus  brevibus  (paleaceis)  constans;  processibus  hyalinis.
—  Longit.  ad  */ 18 '"  (sine  aculeis).
Arcella  aeuleata  Ehrenberg:  Infusionsth.  133.  Tab.  IX.  6.  —  Dujardin:
Hist.  nat.  des  Zoophyt.  (Infus.)  247.
Habitaculum.  Berolini,  Martio  et  Junio  (Ehrenberg).  —  Parisiis
(Dujardin).
3.  Arcella  dentata  ehrenberg.
Lorica  hemisphaerica,  anguloso  —  polygonia  hinc  margine  dentata,
memhranacea,  homogenea,  Havicans  y.  virescens,  processibus
hyalinis.  —  Longit.  ‘/ 48 — 1 /^o ,,, •
Arcella  dentata  Ehrenberg  :  Infusionsth.  134.  Tab.  IX.  7.
Habitaculum.  Berolini,  Julio  (Ehrenberg).
V.  Trinema  dujardin.
Difflugia  et  Arcella?  Ehrenberg.
Corpus  e  loricae  membranaceae  ovoideae  apertura  ventrali  supera
processus  variabilis  2—3  filiformes,  hyalinos  exerens.
i.  Trineina  acinus  dujardin.
Lorica  ovata  diaphana  ,  processibus  filiformibus  hyalinis,  loricae
longitudinis.  —  Longit.  ad  1 / 4 o w -
Trinema  acinus  Dujardin  in  :  Annal.  iles  sc.  nat.  1836.  V.  Tab.  IX,  et
in  Hist.  nat.  des  Zoophyt.  (Infus.)  249,  Tab.  IV,  1.  4
            
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