Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 1-7

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 9-18

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 19-22

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 23-24

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 25-27

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 31-41

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 43-45

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 47-48

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 49-50

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 51-53

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 55-56

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Published in Proceedings of the Biological Society of Washington, in 1927, in volume 40, pages 57-64

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 65-73

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 75-77

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Published in Proceedings of the Biological Society of Washington, in 1927, in volume 40, pages 79-88

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 89-90

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Published in Proc. Biol. Soc. Washington, in 1927, in volume 40, pages 91-92

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 93-94

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 95-96

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 97-98

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 99-109

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 113-114

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 115-116

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 117-118

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 119-121

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 123

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 125-126

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 127-128

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 129-130

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 131-137

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 139-141

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 143-146

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 147-148

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 149-177

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Published in Proc. Biol. Soc. Washington, in 1927, in volume 40, pages 179-192

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 193-194

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 197-204

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 205-206

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Published in Proceedings of The Biological Society of Washington, in 1927, in volume 40, pages 207-210

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