Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 1-14

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 15-17

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Published in Proceedings of the Biological Society of Washington, in 1915, in volume 28, pages 19-23

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 25-43

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Published in Proceedings of the Biological Society of Washington, in 1915, in volume 28, pages 45-48

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Published in Proceedings of the Biological Society of Washington, in 1915, in volume 28, pages 49-52

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Published in Proceedings of the Biological Society of Washington, in 1915, in volume 28, pages 53-60

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 61-68

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 70

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Published in Proc. Biol. Soc. Wash., in 1915, in volume 28, pages 71-78

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 79-82

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 83-85

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 87-88

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 89-94

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 95-100

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 101-102

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 103

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 105-107

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 109-113

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 115-116

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 117-119

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 121-123

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 125-126

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 127-130

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Published in Proc. Biol. Soc. Wash., in 1915, in volume 28, pages 131-132

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 133-137

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Published in Proceedings of the Biological Society of Washington, in 1915, in volume 28, pages 142

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 145-146

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 147-148

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 149-150

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 151-159

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 161-164

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 165-168

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 169-170

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 171-173

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 175-176

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 181

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 182

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 183

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Published in Proceedings of The Biological Society of Washington, in 1915, in volume 28, pages 184

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