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Four new races of Sittidae and Certhidae from Mexico
Volume 52, Page 3
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J, A race of the Rivoli Humming Bird from Arizona and northwestern Mexico
Volume 52, Page 7
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A northwestern race of the Mexican cormorant
Volume 52, Page 9
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Descriptions of two new subspecies of birds from western Mexico
Volume 52, Page 11
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A race of the mihtary macaw from Sonora
Volume 52, Page 13
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Notes on two woodhewers from Mexico
Volume 52, Page 15
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Two new tropical American species of Acanthaceae
Volume 52, Page 17
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A new owstoniid fish from deep water off the Philippines
Volume 52, Page 19
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Two new pocket gophers from Lower California
Volume 52, Page 29
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A new pocket mouse of the genus Perognathus from Nevada
Volume 52, Page 33
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A new red-backed mouse from Kentucky and Virginia
Volume 52, Page 37
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A synopsis of Philippine land mollusks of the subgenera Lamarckiella and Pararyssota of the genus Ryssota
Volume 52, Page 41
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T, A new race of Cynanthus latirostris from Guanajuato
Volume 52, Page 57
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New birds from Asia, chiefly from India
Volume 52, Page 61
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Three new birds from Paraguay
Volume 52, Page 83
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Rare fishes off the Atlantic Coast including a new grammicolepid
Volume 52, Page 85
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The name of the blesbok
Volume 52, Page 89
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Two new shrews from west-central California
Volume 52, Page 93
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A new Aplopappus from the Death Valley region, California
Volume 52, Page 97
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A pleistocene porpoise (Tursiops sp.) from Maryland
Volume 52, Page 99
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A new subspecies of Peromyscus from the north shore of the Gulf of St. Lawrence
Volume 52, Page 101
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Two new races of Carpodacus mexicanus
Volume 52, Page 105
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Three new subspecies of birds
Volume 52, Page 121
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A new arachnid of the order Pedipalpida
Volume 52, Page 123
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New races of the genera Sialia and Carpodacus from Mexico
Volume 52, Page 125
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Natural history of Plummers Island, Maryland. IX. Mammals
Volume 52, Page 131
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Two undescribed South American barbets
Volume 52, Page 135
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Notes on the races of RJiea americana (Linnaeus)
Volume 52, Page 137
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The genera of Phallostethidae
Volume 52, Page 139
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A new Abeille's grosbeak from Tamaulipas
Volume 52, Page 145
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Descriptions and records of harvest mice (genus Reithrodontomys) from Mexico
Volume 52, Page 147
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Descriptions of two subspecies of pocket gopher (Thomomys bottae) from Sonora
Volume 52, Page 151
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A new race of the Mangrove Swallow from northwestern Mexico
Volume 52, Page 155
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A new geographic race of Peromyscus leucopus from Nova Scotia
Volume 52, Page 157
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Two new gophers (mammalian genus Thomomys) from western Utah
Volume 52, Page 159
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A new species of Didiptera from Mexico
Volume 52, Page 163
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A new pit viper from Costa Rica
Volume 52, Page 165
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A new subspecies of Inezia subflava from the neighborhood of Mt. Duida, Venezuela
Volume 52, Page 167
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The North American species of the genus Laelius Ashmead (Hymenoptera: Bethyhdae)
Volume 52, Page 171
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Butterflies from Virginia
Volume 52, Page 177
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A southern race of the Jacana
Volume 52, Page 185
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Mexican herpetological novelties
Volume 52, Page 187