Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 1-79

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 81-98

Published in Proceedings of the Biological Society of Washington, in 1929, in volume 42, pages 99-102

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 103-111

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 113-116

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 117-119

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 121-123

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 125-127

Published in Proc. Biol. Soc. Washington, in 1929, in volume 42, pages 129-130

Published in Proc. Biol. Soc. Wash., in 1929, in volume 42, pages 131-142

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 143-146

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 147-152

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 157-159

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 161-163

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 165-166

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 167-169

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 171-172

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 173-174

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 175-177

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 181-205

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 207-208

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 215-216

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 217-218

Published in Proceedings of The Biological Society of Washington, in 1929, in volume 42, pages 219-220