On the marine mollusca of Madeira : with descriptions of thirty-five new species, and an index-list of all the known sea-dwelling species of that island /
Watson, Robert Boog
On the marine mollusca of Madeira : with descriptions of thirty-five new species, and an index-list of all the known sea-dwelling species of that island / R. B. Watson - Journal of the Linnean Society of London. Zoology ; 26: 233-329. pls 19-20. .
On the marine mollusca of Madeira : with descriptions of thirty-five new species, and an index-list of all the known sea-dwelling species of that island / R. B. Watson - Journal of the Linnean Society of London. Zoology ; 26: 233-329. pls 19-20. .