Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 127-137

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 138-163

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 164-172

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 172-173

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 174-194

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 195-210

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 210-223

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 224-238

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 238-257

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 258-259

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 260

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 261-267

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 268-273

Published in South African journal of natural history, in 1919, in volume 1, issue 2, pages 274-277