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Two new Birds from Morelos, Mexico
Volume 33, Page 33
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A new trichostrongylid nematode from the stomach of American squirrels
Volume 33, Page 75
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Description of a third form of Curassov of the genus Pauxi
Volume 33, Page 142
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New species of flies of the genera Baccha and Rhinoprosopa (Syrphidae)
Volume 33, Page 214
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A folliculinid associated with a hermit crab
Volume 33, Page 216
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A new species of Cyclocoelum, a trematode from the catbird
Volume 33, Page 255
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A revision of the genus Steganocrinus
Volume 33, Page 259
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Another Mexican snake of the genus Pliocercus
Volume 33, Page 344
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The paleontology and stratigraphy of the upper Martinsburg formation of Massanutten Mountain, Virginia
Volume 33, Page 358
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Review of the genera of Blennioid fishes related to Ophioblennius
Volume 33, Page 373