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New Panamic nudibranchs (Gastropoda; Opisthobranchia) from the Gulf of California
Volume 15, Page 1
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Recent Data On Summer Birds Of The Chiricahua Mountains Area Southeastern Arizona Usa Aquila-Chrysaetos Falco-Mexicanus Cyrtonyx-Montezumae Sialia-Sialis Cypseloides-Niger Calothorax-Lucifer
Volume 15, Page 41
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A biological survey of Bahia de Las Angeles, Gulf of California, Mexico, II. Benthic polychaetous annelids
Volume 15, Page 67
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Type Specimens Of Birds In The San-Diego California Usa Natural History Museum
Volume 15, Page 133
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Fossil grouse of the genus Dendragapus
Volume 15, Page 165
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A biological survey of Baha de Los Angeles, Gulf of California, Mexico. 4. Benthic Amphipoda (Crustacea)
Volume 15, Page 175
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Studies On The Tetraclitidae Cirripedia Thoracica Revision Of Tetraclita
Volume 15, Page 237
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Type Specimens Of Mammals In The San-Diego Natural History Museum
Volume 15, Page 252
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Observations On A Young Pygmy Killer Whale Feresa-Attenuata From The Eastern Tropical Pacific Ocean
Volume 15, Page 297