Published in Proc. Biol. Soc. Wash., in 1937, in volume 50, pages 35-42

Published in Proc. Biol. Soc. Washington,, in 1937, in volume 50, pages 125-128

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 43-54

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 141-144

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 9-10

Published in Proc. Biol. Soc. Washington, in 1937, in volume 50, pages 83-86

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 129-132

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 181-182

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 137-139

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 7-8

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 87-91

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 73-74

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 191-192

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 227-229

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 77-82

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 215-216

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 217-218

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 163-165

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 167-173

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 29-32

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 75-76

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 133-135

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 221-225

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 69-71

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 145-149

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 211-213

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 111-113

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 15-16

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 179-180

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 63-68

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 95-102

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 103-106

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 151-152

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 201-205

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 55-60

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 117-119

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 219-220

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 93-94

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 121-123

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 207-209

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 115-116

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 61-62

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 17-21

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 175-178

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 183-184

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 185-190

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 25-26

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 27-28

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 109-110

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 159-160

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 161-162

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 195-196

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 199-200

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 153-157

Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 1