Myxococcus macrosporus (Krzemieniewska and Krzemieniewski 1926) Zahler and McCurdy 1974 (Approved Lists 1980) Zahler S.A. McCurdy H.D. Buchanan R.E. Gibbons N.E. Genus I. Myxococcus Thaxter 1892, 403. 1974 8 79 83 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore 0683011170 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Lang E. Stackebrandt E. Emended descriptions of the genera Myxococcus and Corallococcus, typification of the species Myxococcus stipitatus and Myxococcus macrosporus and a proposal that they be represented by neotype strains. Request for an Opinion 2009 59 8 2122 2128 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.003566-0 19567579 Lang and Stackebrandt 2009 asserted that M271 is no longer available. Opinion 102 states that Windsor M271 is not herbarium material and hence cannot be considered preserved specimens under Rule 18a(1). This excludes the possibility of designating type strains under Rule 18f.