Beagle Under the Command of Captain Fitzroy, R.N., during the Years 1832 to 1836 is a 5-part book published unbound in nineteen numbers as they were ready, between February 1838 and October 1843.

[1] It was written by various authors, and edited and superintended by Charles Darwin, publishing expert descriptions of the collections he had made during the Beagle voyage.

[2] Darwin also contributed notices of habits and ranges throughout the text of Mammalia and Birds, and the text of the Fish and the Reptiles included numerous notes by him that were mostly taken from his labels.

An example of this arrangement can be seen in the catalogue entry for the copies held at the State Library of New South Wales.

The copies published by Elder Smith, 1840-1843 has the five volumes bound into three with some plates folded.