Ixxil Memoir of George Robert Waterhouse. 
appointment he exchanged, in 1836, for the Curatorship 
of the Zoological Society of London. He commenced 
at once to make a catalogue of the mammals in that 
Society's Museum, and by the spring of 1837 had com- 
pleted it. The catalogue, however, was not published 
until the next year, owing to his having introduced into 
it his own classification, which met with strong oppo- 
sition from those who considered it better to keep to the 
quinary system, then much in vogue, and according to 
which the Museum collection had previously been 
arranged. About this time he wrote the volume on 
Marsupials in Sir W. Jardine’s ‘ Naturalist’s Library.’ 
My father was invited to accompany Mr. Charles 
Darwin on the expedition of H.M.S. ‘ Beagle,’ but was 
unable to do so; and Mr. Darwin, on his return to England, 
placed the mammals and coleopterous insects in my 
father’s hands to work out. An account of the mammals 
was published as an Appendix to ‘The Voyage of the 
Beagle.’ Several papers, chiefly on Carabide and Rhyn- 
cophora, were published in the ‘ Magazine of Natural 
History,’ as well as an account of the interesting series 
collected in the Galapagos Islands. 
It is not generally known that he devoted much time 
to the study of the Heteromerous Coleoptera, and made 
out a scheme for their classification. He had prepared a 
paper for publication, and proceeded to the Entomological 
Society to read it, but unfortunately it dropped from his 
pocket and was lost, and he never had the heart to 
re-write it. Some of the chief points used in the 
classification were fortunately noted elsewhere,* and 
have since been taken up by Lacordaire in his ‘ Généra 
des Coleoptéres.’ The dissections which he made for the 
purpose are now in the British Museum. It is not im- 
probable that the examination of the Heteromera was 
mainly due to the study of the new genera and species 
collected by Mr. Darwin, particularly those from the 
Galapagos Islands, and the Nyctelide. An account of 
these latter was published in the ‘ Proceedings of the 
Zoological Society,’ and others in the ‘Ann. & Mag. of 
Natural History’; but many more already dissected 
and some named in manuscript show that he had given 
much attention to them. 
* See Ann. & Mag. Nat. Hist., xvi. (1845), pp. 817, 318. 
