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An annotated list of the butterflies of San Diego County, California
Volume 6, Page 1
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New and renamed subspecies of Crotalus confluentus Say, with remarks on related species
Volume 6, Page 95
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Upper Eocene Orbitoid Foraminifera from the Western Santa Ynez Range, California and their stratigraphic significance
Volume 6, Page 147
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New species of Mollusks
Volume 6, Page 173
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Notes on some species ot Epitomum, Subgenus Nitidtscala, from the West Coast of North America
Volume 6, Page 183
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A new subspecies of the California boa, with notes on the genus Lichanura
Volume 6, Page 305
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Notes on the worm snakes of the southwest, with descriptions of two new subspecies
Volume 6, Page 333
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Crotalus tigris and Crotalus enyo, two little known rattlesnakes of the southwest
Volume 6, Page 353
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A new subspecies of Peromyscus from the Gulf Coast of Lower California, Mexico
Volume 6, Page 389