Bulletin of Zoological Nomenclature 115 (1) exercise its Plenary Powers to rule: (a) that the name Pleiodactyliis crassipes Meyer, 1 857 is not to be given priority over the name Arclmeopteryx lithographica Meyer, 1861, by any zoologist who believes that those names apply to the same species-group taxon; (b) that the type-specimen of Arclmeopteryx lithographica Meyer, 1861, is the species whose fossil skeletal remains, imbedded in Solenhofen lime-stone, Kimmeridgian, are in the British Museum (Natural History), bearing catalogue No. 37001. COMMENT ON SCHISTODERA COBB, 1920 (NEMATODA: ENOPLIDA), A REQUEST FOR SUPPRESSION; OXYSTOMINA FILIPJEV, 1921 PROPOSED FOR THE OFFICIAL LIST. Z.N.(S.) 2031 (See volume 30, pages 102-103) By R. V. Melville {Secretary, International Commission on Zoological Nomenclature) The generic name Oxystomina first appears in the legend on Plate 2 of Filipjev's two part presentation. The plates are bound after the first 22 sheets of Part I, 1918 and before sheets 23-39 of Part 2, 1921. We are grateful to Dr. Bruce E. Hopper of the Plant Protection Division, Department of Agriculture, Ottawa, Canada, for bringing this fact to our attention. Bound in front of the title page is a note printed in Russian, which translates as: "After the binding, the title page and the foreword of the first part have been discarded, the rest follows as : 1 . Title page, foreword and the table of contents (from part I) 2. Sheets 1-22 (from part I) 3. Sheets 23-39 (from part II) 4. Plates 1-1 1 (from part I)'". Then, on page iv of the foreword is a list of the publication dates of the separate sheets. This is translated as follows : 1 — April 1916 19 — September 1917 2-4 — May 1916 20-22 — March 1918 5-9 — September 1916 23-24 — March 1918 10-11 — January 1917 25-26 — July 1918 12-13 — April 1917 27 — December 1918 14 — February 1917 28-32 — October 1921 15-17 — April 1917 33-39 — December 1921 18 — February 1918 This list is followed by this sentence: "The first part (sheets 1-22) appeared in November 1918, the second is appearing now". (This foreword was written by I. N. Filipjev and is dated Petrograd, 1 December 1921). Thus, the date of publication of Oxystomina is 1918 and not 1921 as given in the application, and Oxystomina is an available name from 1918. (Article 12; 16(a) (vii)). On plate 2, Oxystomina clavicauda n.sp. and Oxystomina filiformis n.sp. are both named and figured and therefore, one of these two species should be designated as the type-species for Oxystomina (Article 69(a)). In order thai Oxystoma elongatum Biitschli, 1874, may be designated as the type-species, the plenary powers must be invoked. Therefore the proposals put forward by W. D. Hope and D. G. Murphy are here amended and the International Commission on Zoological Nomenclature is asked: (I) to use its plenary powers to set aside all designations of type-species for the nominal genus Oxystomina Filipjev, 1918, made prior to the requested Ruling and, Bull. zool. Nomencl., Vol. 31, Part 3. September 1974.
Comment On Schistodera Cobb, 1920 (Nematoda: Enoplida), A Request For Suppression; Oxystomina Filipjev, 1921 Proposed For The Official List. Z.n.(S.) 2031
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