. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. ^ UULktLt PflW YORK BULLETIN OF THE "Z!^ Southern California Academy of Sciences LOS ANGELES, CALIFORNU. Vol. 60 January-April, 1961 Part 1 CONTENTS The Relationship of Temperature and Dissolved Oxygen to the Seasonal Settlement of the Polychaetous Annelid Hy- droides norvegica (Gunnerus). Donald J. Reish A New Species of Siliqua (Pelecypoda) from Western North America. Leo G. Hertlein Populations of the Butterfish, Poronotus triacanthus (Peck), With Systematic Comments. David K. Caldwell
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. ^ UULktLt PflW YORK BULLETIN OF THE "Z!^ Southern California Academy of Sciences LOS ANGELES, CALIFORNU. Vol. 60 January-April, 1961 Part 1 CONTENTS The Relationship of Temperature and Dissolved Oxygen to the Seasonal Settlement of the Polychaetous Annelid Hy- droides norvegica (Gunnerus). Donald J. Reish A New Species of Siliqua (Pelecypoda) from Western North America. Leo G. Hertlein Populations of the Butterfish, Poronotus triacanthus (Peck), With Systematic Comments. David K. Caldwell A New Trogloderus from the Aeolian Saline Dunes of South- ern California. Charles S. Papp Extension of Range and a New Host Plant of Philotes speci- osa. Fred Thome Brief Notes on the Life Histories of Three Southwestern Moths. John Adams Comstock A New Eupithecia from Arizona (Lepidoptera, Geometridae) Carl W. Kirkwood Early Cotton Insects of the Imperial Valley. E. A. Page 12 19 32 Z1 40 45 47 Issued April 30, 1961 h. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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