Published in Proc. Biol. Soc. Wash, in 1928, in volume 41, pages 127-128

Published in Proc. Biol. Soc. Wash, in 1928, in volume 41, pages 45-48

Published in Proc. Biol. Soc. Washington, in 1928, in volume 41, pages 49-51

Published in Proc. Biol. Soc. Washington, in 1928, in volume 41, pages 53-59

Published in Proc. Biol. Soc. Washington, in 1928, in volume 41, pages 169-170

Published in Proc. biol. Soc. Wash, in 1928, in volume 41, pages 175-188

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 61-66

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 139-140

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 145-150

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 125-126

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 17-19

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 1-6

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 7-13

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 15-16

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 129-131

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 189-190

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 21-23

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 25-29

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 93-95

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 141-142

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 203-206

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 39-40

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 157-163

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 71-84

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 133-138

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 41-43

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 115-119

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 143-144

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 211-214

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 123-124

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 31-36

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 209-210

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 39-40

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 85-86

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 153-156

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 207-208

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 67-68

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 97-106

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 107-109

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 111-113

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 89-91

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 121-122

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 167-168

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 151

Published in Proceedings of The Biological Society of Washington, in 1928, in volume 41, pages 201

Published in Proceedings of the Biological Society of Washington, in 1928, in volume 41, pages 87-88