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The North American species of the bee genus Lithurge (Hymenoptera: Megachilidae)

Published in Contributions In Science (Los Angeles), in 1983, in volume 343, pages 1-11

The Tertiary sponges Aphrocallistes and Eurete from western Washington and Oregon

Published in Contributions In Science (Los Angeles), in 1983, in volume 344, pages 1-13

New genera and a new species of Central American salamanders, with a review of the tropical genera (Amphibia, Caudata, Plethodontidae)

Published in Contributions In Science (Los Angeles), in 1983, in volume 345, pages 1-19

The cranial morphology of the fossil beaver Dipoides smithi (Rodentia: Mammalia)

Published in Contributions in Science (Los Angeles), in 1983, in volume 346, pages 1-6