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Darwin Correspondence Project

To Osbert Salvin   23 June [1868]

Down. | Bromley. | Kent. S.E.

June 23d

My dear Sir

I thank you most sincerely for the great trouble, which you have taken in answering my questions.— Your answers are all perfectly clear & distinct.— I am very glad indeed to hear of the case of the Sandpiper—1 such little facts are my delight. It will go well with the F. Water Ancylus attached to a Dyticus, & the Balani attached to a Flamingo’s feet.—2

With cordial thanks, pray believe me | Yours sincerely & obliged | Charles Darwin


See the first enclosure to the letter from Osbert Salvin, 20 June 1868.
In Origin, p. 386, CD remarked that Charles Lyell had told him of a Dyticus (or Dytiscus: a water-beetle) caught with an Ancylus (a freshwater shell like a limpet) adhering to it. In his letter of 14 August 1863 (Correspondence vol. 11), Robert Swinhoe had written to CD of a flamingo that had its legs covered with barnacles. CD was interested in possible vectors for the distribution of organisms.


Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 27 vols to date. Cambridge: Cambridge University Press. 1985–.

Origin: On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. By Charles Darwin. London: John Murray. 1859.


CD thanks OS for answering his questions and especially for giving the case of the sandpiper; "such little facts are my delight". [See 6253.]

Letter details

Letter no.
Charles Robert Darwin
Osbert Salvin
Sent from
JU24 | 68
Source of text
Sybil Rampen (private collection)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 6258A,” accessed on 19 September 2021,

Also published in The Correspondence of Charles Darwin, vol. 16