Letters

Authors

  • American Zoo,

  • Aquarium Association,

  • Old Georgetown Road,

  • Bethesda,

  • Md U.S.A.,

  • Department Of Animal& Plant Sciences,

  • University Of Sheffield,

  • Sheffield S10 Tn,

  • United Kingdom,

  • Institute Of Zoology,

  • Zoological Society Of London,

  • Regent’s Park,

  • London Nw1 Ry,

  • United Kingdom,

  • Durrell Institute Of Conservation& Ecology,

  • Department Of Biosciences,

  • University Of Kent,

  • Canterbury,

  • Kent Ct2 Nj,

  • United Kingdom,

  • Bio-Resources Inc.,

  • East Center,

  • Logan,

  • Ut U.S.A.,

  • National Museum Of Natural History,

  • Msc Mrc Institution,

  • Washington,

  • D.C. Address:,

  • University Of Alaska Museum,

  • Yukon Drive,

  • Fairbanks,

  • Ak aurora.alaska.edu>

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