Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 1-17

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 19-33

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 35-37

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 39-41

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 43-44

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 47-51

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 53-55

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 57-60

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 61-65

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 67-68

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 69-70

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 71-72

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 73-75

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 77-87

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 89-92

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 93-99

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 101-102

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 103-104

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 105-107

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 109-110

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 111-112

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 113-138

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 145-146

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 147-148

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 149-151

Published in Proceedings of the Biological Society of Washington, in 1897, in volume 11, pages 153-167

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 169-171

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 173-174

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 175-178

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 179-180

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 181-183

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 185-187

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 221-223

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 227-230

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 231-234

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 235-240

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 241-270

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 271-275

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 277-279

Published in Proceedings of The Biological Society of Washington, in 1897, in volume 11, pages 281-282