Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 9-12

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 147-153

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 69-71

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 51-58

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 205-208

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 89-94

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 31-34

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 101-106

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 61-62

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 73-76

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 63-64

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 1-4

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 13-14

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 203-204

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 77-81

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 195-202

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 139-146

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 15-28

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 97-100

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 127-130

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 131-138

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 191-193

Published in Proceedings of the Biological Society of Washington, in 1950, in volume 63, pages 189-190

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 163-165

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 177-181

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 65-68

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 111-113

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 185-188

Published in Proceedings of The Biological Society of Washington, in 1950, in volume 63, pages 171-174