Published in Zoologica New York, in 1957, in volume 42, pages 83-86

Published in Zoologica New York, in 1957, in volume 42, pages 105-130

Published in Zoologica, in 1957, in volume 42, issue 1, pages 1-10

Published in Zoologica, in 1957, in volume 42, issue 2, pages 11-31

Published in Zoologica, in 1957, in volume 42, issue 3, pages 33-50

Published in Zoologica, in 1957, in volume 42, issue 4, pages 51-61

Published in Zoologica, in 1957, in volume 42, issue 5, pages 63-68

Published in Zoologica, in 1957, in volume 42, issue 6, pages 69-82

Published in Zoologica, in 1957, in volume 42, issue 8, pages 87-98

Published in Zoologica, in 1957, in volume 42, issue 9, pages 99-104

Published in Zoologica, in 1957, in volume 42, issue 11, pages 131-134

Published in Zoologica, in 1957, in volume 42, issue 12, pages 135-145

Published in Zoologica, in 1957, in volume 42, issue 13, pages 147-158

Published in Zoologica, in 1957, in volume 42, issue 14, pages 159-166