Thanks JWF and G. R. Waterhouse for cirripede specimens.
Down Farnborough Kent
My dear Sir
I write a line to thank you & M
(1) Scalpellum trilineatum (of which I have hitherto seen only one specimen)
(2) S. arcuatum (of which you before sent me one, but different valve.—
(3) P. rigidus
(4) P. lævis or unguis
With thanks | Yours sincerely | C. Darwin
- f1 13807.f1Woodward, an assistant in the department of geology and mineralogy at the British Museum, is the most likely recipient of this letter. See letter to S. P. Woodward, 21 March , and Fossil Cirripedia (1851) in which all four specimens in this letter are described as coming from the British Museum. George Robert Waterhouse was a colleague of Woodward.
- f2 13807.f2The date range is limited by the date by which CD would have received Scalpellum specimens from Woodward (see letter to S. P. Woodward, 21 March ) and the date of completion of the manuscript of the first volume of Fossil Cirripedia in January 1851.
- f3 13807.f3See letter to S. P. Woodward, 21 March .
- f4 13807.f4The specimens are described in Fossil Cirripedia (1851): 38, 40, 73, and 64, respectively. Pollicipes unguis had previously been confused with P. lævis by James de Carle Sowerby, and CD used these and other specimens to distinguish the two species, reserving the name P. lævis for the barnacle identified and first named by Johannes Japetus Smith Steenstrup (Fossil Cirripedia (1851): 55, 64–5, 80).