Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XXIII (1927)
Harring, H. K.; Myers, F. J.
The rotifer fauna of Wisconsin. IV. The Dicranophorinae, pp. -Plate 49 ff. PDF (41.5 MB)
THE ROTIFER FAUNA OF WISCONSIN. IV. THE DICRANOPHORINAE H. K. HARRING AND F. J. MYERS Notes from the Biological Laboratory of the Wisconsin Geological and Natural History Survey. XXX. INTRODUCTION Confusion has long reigned among the forcipate Notom- nmatids or Dicranophorinae. Attention was called to the problem by De Beauchamp in his fundamental work of 1909, and Von Hofsten attempted in his papers of 1912 and 1923 to bring order out of the chaos without, however, achiev- ing any striking results. With a large number of unde- scribed species belonging to this group on our hands some rearrangement becomes necessary. As explained in earlier papers of this series, the work on the Wisconsin rotifers originated as a faunal list, but with the lapse of time it has unavoidably taken on some- lath- slt 1 -o -. -r - sne r; - - -]s~n - -1 -T -Y1e A"1 _-1 h_ ALAS4YA Yvl~ 1"a1YV1 jj1AjjV.JU1 %U110i. kJJV1VUU!i1Y flu n1)U 6e W ere euf1LU1- tained at any time that it would be possible to exhaust the rotifer fauna of any such extensive territory, but it was thought practicable to reach within a reasonable time a stage where new species would be found only at rare inter- vals. This has been attained for Lecane and Monostyla, but for no other genera, and there is as yet no reason for hoping that it will be, at least not for the larger genera. Even now it is possible to go to old, favorite collecting grounds that have been visited regularly for years, and bring home a dozen undescribed rotifers in a week, always including some additions to the Dicranophorinae. We have therefore come to the conclusion that there is no real gain in deferring publication of descriptions and figures of the species found up to the present. Even an incomplete paper may be of some help, if it is taken only for what this claims to be: a collection of descrintionrs and figures of snecies s t u d i e db yt h ew r i t e r s ,a n dn o t h i n gm o r e.I s d no t Studied by the writers, and nothing more. It should not I J I 1.1 I I
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