MolluscaBase taxon details
original description
(of Helix apexfulva Dixon, 1789) Dixon, G. (1789). <i>A voyage round the world; but more particulariy to the north·west coast of America: performed in 1785, 1786, 1787, and 1788, in lhe King George and Queen Charlotte, Captains Portlock and Dixon</i>. London: Goulding. xxix + [2] + 360 + 47 pp., 17 pis. , available online at https://www.biodiversitylibrary.org/page/28558670 page(s): 354, pl. [details]
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