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Notes on the ratios of insect food habits
Volume 38, Page 1
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Description of a new Oriolus
Volume 38, Page 5
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A new clubionid spider of the genus Phruronellus from California
Volume 38, Page 7
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Three new birds from western China
Volume 38, Page 9
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Description of a new species of luminous lizard fish, Scopelosaurus smithii, from off the coast of Brazil
Volume 38, Page 13
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The adult of our common North American chigger
Volume 38, Page 17
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A new bat of the genus Trachops from Guatemala
Volume 38, Page 23
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A new kangaroo rat of the genus Dipodomys from Oregon
Volume 38, Page 33
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Notes on chilopods and diplopods from Barro Colorado Id. and other parts of the Canal Zone with diagnoses of new species
Volume 38, Page 35
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Two new species of Sciaphila
Volume 38, Page 45
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A revision of the osmerid fishes of the North Pacific
Volume 38, Page 49
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The origin of the castes in termites
Volume 38, Page 57
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Five new species and a new variety of water-striders from North America (Hemiptera: Gerridae)
Volume 38, Page 69
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The American species of the genus Griphoneura Schiner (Diptera, Sapromyzidae)
Volume 38, Page 75
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Descriptions of new Furaariidae and Dendrocolaptidae
Volume 38, Page 79
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Two new kangaroo rats of the genus Dipodomys from Lower California
Volume 38, Page 83
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New names for five South American Asteraceae
Volume 38, Page 85
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Note on the Atlantic Coast species Plicatula
Volume 38, Page 90
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Sixteen new birds from Brazil and Guiana
Volume 38, Page 91
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New Neotropical lizards
Volume 38, Page 101
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Three new genera and three new species of Cimicidae from North America
Volume 38, Page 103
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Four new birds from Brazil
Volume 38, Page 111
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A new thrush from the Province of Kweichou, China
Volume 38, Page 115
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A new violet from China
Volume 38, Page 117
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Notes on North American spiders heretofore referred to Coelotes
Volume 38, Page 119
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Two new pigmy shrews of the genus Microsorex
Volume 38, Page 125
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Preliminary descriptions of seven shrews of the genus Sorex
Volume 38, Page 127
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A new red-winged blackbird from western Mexico
Volume 38, Page 131
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Four new birds from Salvador
Volume 38, Page 133
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New mites of the parasitic genus Haemogamasus Berlese
Volume 38, Page 137
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Another annectant genus (Hemiptera: Cimicoidea)
Volume 38, Page 145
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Notes on fossil termites with particular reference to Florissant, Colorado
Volume 38, Page 149