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A new subspecies of Poanes massasoit Scudder
Vol 21, Iss 1, Page 7, Date 1931-11
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Field keys to the lizards and amphibians of British Guiana
Vol 21, Iss 1, Page 11, Date 1931-11
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New species and subspecies of African birds
Vol 21, Iss 1, Page 43, Date 1931-11
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New species from the Oligocene of the Uinta
Vol 21, Iss 2, Page 61, Date 1932-04
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A new arctic weasel from Southampton Island, Hudson Bay
Vol 21, Iss 2, Page 79, Date 1932-04
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A synopsis of the genus Metrobates Uhler (Hemiptera: Gerridae)
Vol 21, Iss 2, Page 83, Date 1932-04
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A new species of Delocrinus
Vol 21, Iss 2, Page 89, Date 1932-04
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Jurassic insects from Solenhofen in the Carnegie Museum and the Museum of Comparative Zoology
Vol 21, Iss 3, Page 97, Date 1932-09
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A new turtle from the Duchesne Oligocene of the Uinta Basin, Northeastern Utah
Vol 21, Iss 3, Page 131, Date 1932-09
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A new Anosteirid from the Uinta Eocene
Vol 21, Iss 3, Page 161, Date 1932-09
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Neotropical bats in the Carnegie Museum
Vol 21, Iss 3, Page 171, Date 1932-09
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Revision of the subfamily Thyreocorinae of the Pentatomidae (Hemiptera-Heteroptera)
Vol 21, Iss 4, Page 191, Date 1933-07
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Natica sancti-vincentii
Vol 21, Iss 4, Page 413, Date 1933-07
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Obituary: W. J. Holland
Vol 21, Page i, Date 1932-12
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Errata
Vol 21, Page xiv, Date 1932-12