RECORD: Darwin, C. R. n.d. Waterhouse has read paper to show (May 45) that typical genera. CUL-DAR205.5.113. (Cite as: John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR205.5 contains notes on the principle of divergence, transitional organs and instincts.
Waterhouse has read paper to show (May 45) that typical genera (ie with organs well balanced are mundane of wide distribution, some peculiar to temperate & some to tropical climate — that are aberrant few in number of species (NB which makes them aberrant) have narrow ranges. (ie they are groups which are becoming exterminated. All this deduced from insects = same as Hooker. = But there is exception in water insects, which have all wide generic distribution & in parasitic insects as in Chalcidicæ.
Stylops & Earwigs opposed to this.—
Waterhouse remembered that in great groups.— most of the genera, might be reduced to one, 2, or 3 or 4 main types, with some quite different character — thus tapir — pig & horse, 3 groups which will include almost all— tapir including most.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 5 March, 2023