Published in Proceedings of the Biological Society of Washington, in 1949, in volume 62, pages 1-2

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Published in Proceedings of the Biological Society of Washington, in 1949, in volume 62, pages 3-6

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 7-8

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 9-10

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 11-12

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 13-16

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 17-25

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 29-30

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 33-44

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 57-68

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 69-72

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 73-77

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 81-88

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 89-96

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 97-100

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 101-102

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 103-104

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 105-107

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 125-129

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 135-142

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 143-146

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 147-148

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 149-150

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 153-154

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 155-157

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 161-162

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 163-164

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Published in Proc. Biol. Soc. Washington, in 1949, in volume 62, pages 165-168

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 169-172

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 173-174

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 175-176

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Published in Proceedings of The Biological Society of Washington, in 1949, in volume 62, pages 177-181

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