. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. 172 Bulletin So. Calif. Academy of Sciences. 27*17^ 1152^58^ Seale in meters Figure 1. Map of Pools X and Y on the North Pine River. sediment. In October and December, 1962, adults were surviving under these conditions, but no larval settlement occurred. In February, 1963, no Mercierella remained in pools X and Y. In February 1965, the black sediment was evident at low tide at the upper end of pool Y. No Mer- cierella were found in the Pine Please note that these images are extracted f
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. 172 Bulletin So. Calif. Academy of Sciences. 27*17^ 1152^58^ Seale in meters Figure 1. Map of Pools X and Y on the North Pine River. sediment. In October and December, 1962, adults were surviving under these conditions, but no larval settlement occurred. In February, 1963, no Mercierella remained in pools X and Y. In February 1965, the black sediment was evident at low tide at the upper end of pool Y. No Mer- cierella were found in the Pine 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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