Published in Biol Bull, in 1911, in volume 20, pages 81-107

Published in Biol Bull, in 1911, in volume 20, pages 237-251

Published in Biological Bulletin. Marine Biological Laboratory (Woods Hole), in 1911, in volume 20, pages 252-265

Published in Biol Bull, in 1911, in volume 20, pages 266-280

Published in Biol Bull, in 1911, in volume 20, pages 332-349

Published in Biol Bull, in 1911, in volume 20, pages 350-366

Published in Biol Bull, in 1911, in volume 21, pages 113-121

Published in Biol Bull, in 1911, in volume 21, pages 215-221

Published in Biol Bull, in 1911, in volume 21, pages 302-338

Published in Biol Bull, in 1911, in volume 22, pages 39-59