Published in Bulletin of the United States National Museum, in 1968, in volume 257, pages 1-484

Published in Bull. United States Nat. Mus., in 1968, in volume 261, pages 1-287

Published in Bulletin United States National Museum, in 1968, in volume 263, pages 1-104

Published in Bulletin of the U.S. National Museum, in 1968, in volume 270, pages 1-143

Published in Bulletin of the United States National Museum, in 1968, in volume 272, pages 1-184

Published in Bulletin of the United States National Museum, in 1968, in volume 278, pages 1-47

Published in Bulletin of the United States National Museum, in 1968, in volume 287, pages 1-427