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The mammalian faunas of the Paleocene of central Utah, with notes on the geology
Vol 91, Iss 3121, Page 1
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A new fossil crocodilian from Colombia
Vol 91, Iss 3122, Page 55
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The North American moths of the genus Arachnis, with one new species
Vol 91, Iss 3123, Page 59
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Some little-known fossil lizards from the Oligocene of Wyoming
Vol 91, Iss 3124, Page 71
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New species of hydroids, mostly from the Atlantic Ocean, in the United States National Museum
Vol 91, Iss 3125, Page 77
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The Nevada early Ordovician (Pogonip) sponge fauna
Vol 91, Iss 3126, Page 91
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The Mexican subspecies of the snake Coniophanes fissidens
Vol 91, Iss 3127, Page 103
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Report on the Smithsonian-Firestone Expedition's collection of reptiles and amphibians from Liberia
Vol 91, Page 113
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Notes on some crayfishes from Alabama caves, with the description of a new species and a new subspecies
Vol 91, Iss 3129, Page 141
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Notes on the snake genus Trimorphodon
Vol 91, Iss 3130, Page 149
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Catalog of human crania in the United States National Museum collections: Eskimo in general
Vol 91, Iss 3131, Page 169
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The species of Aegla, endemic South American fresh-water crustaceans
Vol 91, Iss 3132, Page 431