RECORD: Darwin, C. R. 'Aberrant groups' (4.1843) CUL-DAR205.5.60 Transcribed by Kees Rookmaaker (Darwin Online,

REVISION HISTORY: Transcribed by Kees Rookmaaker, corrections by John van Wyhe 11.2010. RN1

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Aberrant groups Hensleigh remarks that groups are aberrant because they are few in number — it is doubtful how far this holds with genera — I look at aberrant groups as "living fossils". — Ap /43/


[60 verso]

If aberrant genera have few species proof of extinction for the a genus wd not be less aberrant whether or not many species. as Ornithorynchus & Echidna. — Apteryx. —

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Citation: John van Wyhe, editor. 2002-. The Complete Work of Charles Darwin Online. (

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