Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 1-3

Published in Proc biol Soc Wash, in 1940, in volume 53, pages 5-6

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 7-11

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 13-14

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 15-17

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 19-21

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 23-29

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 31-33

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 35-37

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 39-45

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 47-49

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 51-53

Published in Proc. Biol. Soc. Washington, in 1940, in volume 53, pages 55-64

Published in Proceedings of the Biological Society of Washington, in 1940, in volume 53, pages 65-66

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 67-69

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 71-73

Published in Proceedings of the Biological Society of Washington, in 1940, in volume 53, pages 75-78

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 79-80

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 81-89

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 91-92

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 92

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 93

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 95-97

Published in Proceedings of the Biological Society of Washington, in 1940, in volume 53, pages 99-104

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 105-107

Published in Proceedings of the Biological Society of Washington, in 1940, in volume 53, pages 109-117

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 119-123

Published in Proceedings of the Biological Society of Washington, in 1940, in volume 53, pages 125-130

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 131-133

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 135-154

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 155-156

Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 157-158