. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences LOS ANGELES, CALIFORNIA. Vol. 57 September-December, 1958 Part 3 ~ CONTENTS Factors Affecting Neoteny in the Salamander Dicamptodon ensatus. {Eschscholtz) Frederick W. Schuierer 119 Notes on the Distribution of Conchostracans in California. Donald M. Wootton and Norman T. Mattox 122 A Scalariform Micrarionta from Baja California Norte, Mexico. Robert J. Drake 124 Morphology of the Common Mudflat Snail, Cerithidea californica. Donald Bolto
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences LOS ANGELES, CALIFORNIA. Vol. 57 September-December, 1958 Part 3 ~ CONTENTS Factors Affecting Neoteny in the Salamander Dicamptodon ensatus. {Eschscholtz) Frederick W. Schuierer 119 Notes on the Distribution of Conchostracans in California. Donald M. Wootton and Norman T. Mattox 122 A Scalariform Micrarionta from Baja California Norte, Mexico. Robert J. Drake 124 Morphology of the Common Mudflat Snail, Cerithidea californica. Donald Bolton Bright 127 Notes on the Early Stages of Feralia februalis Grote. John Adams Comstock 140 A Brief Note on the Pupa of Melitaea pola Boisduval. John Adams Comstock 143 Check List of the AllecuUd Genus Hymenorus Muls, in North America. Charles S. Papp 145 A New Genus of Apterous Aradid from tlie PhiHppines. Carl J. Drake 147 Three New Species of Ypsotingis. Carl J. Drake 149 A Synopsis of the Genus Belostoma LatreiUe of America North of Mexico, with the Description of a New Species. Arnold S. Menke 154 Frank Ehner Peabody, PhD 175 Academy Proceedings 178 Scientific Notes 179 Random Notes on Early Stages of Lepidoptera. /. A. Comstock 179 Issued December 31, 1958. 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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