Published in Proc. Biol. Soc. Wash., in 1930, in volume 43, pages 137-144

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 73-78

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 55-64

Published in Proceedings of the Biological Society of Washington, in 1930, in volume 43, pages 65-71

Published in Proceedings of the Biological Society of Washington, in 1930, in volume 43, pages 179-184

Published in Proceedings of the Biological Society of Washington, in 1930, in volume 43, pages 185-187

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 195-196

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 193-194

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 5-6

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 161-162

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 163-165

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 9-12

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 13-15

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 1-2

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 3-4

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 125-128

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 145-148

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 153-155

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 89-96

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 167-178

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 21-54

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 17-20

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 97-122

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 79-80

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 123-124

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 133-135

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 189-191

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 129-131

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 7-8

Published in Proceedings of The Biological Society of Washington, in 1930, in volume 43, pages 149-150

Published in Proceedings of the Biological Society of Washington, in 1930, in volume 43, pages 151-152

Published in Proceedings of the Biological Society of Washington, in 1930, in volume 43, pages 185-188