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Darwin’s study of the Cirripedia

Summary

Darwin’s work on barnacles, conducted between 1846 and 1854, has long posed problems for historians. Coming between his transmutation notebooks and the Origin of species, it has frequently been interpreted as a digression from Darwin’s species work. Yet…

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  • Darwins work on barnacles, conducted between 1846 and 1854, has long posed
  • … , it has frequently been interpreted as a digression from Darwins species work. Yet when this study
  • anomalous. Moreover, as the letters in this volume suggest, Darwins study of cirripedes, far from
  • classification using the most recent methods available, Darwin was able to provide a thorough
  • his views on the species question (Crisp 1983).    Darwins interest in invertebrate zoology
  • Robert Edmond Grant. In his Autobiography (pp. 4950), Darwin recalled: ‘Drs. Grant and
  • numerous references to the ova of various invertebrates, and Darwins first scientific paper, …
  • marine organisms was exercised during the Beagle voyage. Darwin expressed his current enthusiasm
  • earlier researches in Edinburgh on the ova of invertebrates, Darwin was particularly well prepared
  • In 1835, in the Chonos Archipelago off the coast of Chile, Darwin foundmost curiousminute
  • In the zoological notes made during the Beagle voyage, Darwin recorded: ‘The thick shell of some
  • the absence of a shell and its unusual parasitic nature, Darwin recognised that it differed greatly
  • that observed in the metamorphosis of Crustacea (DAR 31.2: 307). This observation was notable, for
  • Such a revaluation had not been undertaken when, in 1846, Darwin began to examine several
  • of as many genera as I could procure.’ For fourteen months Darwin pursued an anatomical study of
  • British Museum and himself a cirripede expert, suggested to Darwin that he prepare a monograph of
  • and advised him on procuring other collections. At the time Darwin committed himself to this study, …
  • his attention for the next seven years. To appreciate why Darwin would have undertaken such a study, …
  • such questions as yours,—whether number of species &c &c should enter as an element in
  • from common stocksIn this view all relations of analogy &c &c &, consist of those
  • metamorphoses, as we shall see presently in Hippoboscus &c  states that in Crust, antennæ & …
  • 1852) or elevating it to a separate class altogether (R. Owen 1855). Milne-Edwards and Owen also
  • as a distinct class between the Crustacea and the Annelida (R. Owen 1855).^7^ Darwin, however, with
  • spirits  Every cirriped that I dissect I preserve the jaws &c. &c. in this manner, which
  • CDs specimen has remained unique. (The editors thank Drs R. W. Ingle and G. Boxshall of the British