File:Origin of Vertebrates Fig 091.png

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English: Fig. 91.—Sagittal Median Diagrammatic Section through the Operculum of the Male Thelyphonus. (From Tarnani.)


The thick line is the operculum, composed of two segments, I. and II. Ut. Masc., uterus masculinus; Gen. Ch., genital chamber; Int. Op., internal opening; Ext. Op., external opening common to the genital and respiratory organs.
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Source The Origin of Vertebrates. https://archive.org/details/originofvertebra1908gask
Author Walter Holbrook Gaskell.


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current16:56, 10 November 2013Thumbnail for version as of 16:56, 10 November 20131,003 × 814 (29 KB)Keith Edkins (talk | contribs)== {{int:filedesc}} == {{Information |Description={{En|Fig. 91.—Sagittal Median Diagrammatic Section through the Operculum of the Male Thelyphonus. (From Tarnani.) The thick line is the operculum, composed of two segments, ''I.'' and ''II.'' ''Ut. ...

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