German article in Die Gartenlaube, 1878, no. 11

German series in Die Gartenlaube, 1881/82

German article in Die Gartenlaube, 1885, no. 39

German article in Die Gartenlaube, 1886, no. 2

Heidelburg, C.F. Winter'sche Verlagshandlung, 1870.

German article in Die Gartenlaube, 1885, no. 3

German article in Die Gartenlaube, 1883, no. 15

German article series in Die Gartenlaube, 1886–87, no. 5, 6, 11, 21, 18, 28, 33

Leipzig :C.F. Winter'sche Verlagshandlung,1872-1876. | Field Museum of Natural History Library

Lugduni-Batavorum, apud E. J. Brill, 1865.

German article in Die Gartenlaube, 1881, no. 42

German article in Die Gartenlaube, 1882, no. 42

London: Zoological Society of London, 1870.

book (1901) by Otto Finsch, vol. 15 of the series "Das Tierreich"