. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences Vol. 56 LOS ANGELES, CALIFORNU. January-Apkdl, 1957 Part 1 CONTENTS Head Muscles of Salamanders. William A. Hilton New Bathypelagic Amphipods of the Genera Rhachotropis and Lepechinella with Keys to the Genera. J. Laurens Barnard 14 Two Species of Bryozoa Ctenostomata from the Salton Sea. John D. Soule 21 Four New Porcellain Crabs from the Eastern Pacific. Janet Haig 31 Notes on the Early Stages of Two Western American Moths. John Adams C


. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences Vol. 56 LOS ANGELES, CALIFORNU. January-Apkdl, 1957 Part 1 CONTENTS Head Muscles of Salamanders. William A. Hilton New Bathypelagic Amphipods of the Genera Rhachotropis and Lepechinella with Keys to the Genera. J. Laurens Barnard 14 Two Species of Bryozoa Ctenostomata from the Salton Sea. John D. Soule 21 Four New Porcellain Crabs from the Eastern Pacific. Janet Haig 31 Notes on the Early Stages of Two Western American Moths. John Adams Comstock 42 Two New Species of Rhagovelias (Hemiptera: Vellidae). Carl J. Drake 47 Commander Charles Montagu Dammers. 1878-1956 50 Scientific Notes: Conenose Bug and Trypanosoma Observations for 1955-56 from Southwestern National Monuments. Sherwin F. Wood 51 Issued May 13, 1957. 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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