. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Fig. 1. —Punta Penasco, Sonora, Mexico (S. H. No. 38010.) x 3. Fig. 2 — La Libertad, Sonora, Mexico, (S. H. No. 13105.) x 3 Micrarionta rowelli mexicana Pilsbry & Lowe. PLATE 15 79. 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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