1931 39, 6 p., 1 folded table, roy. 4to, disbound (no covers). Published in: Transactions of the Linnean Society of London. Part X of The Percy Sladen Trust Expedition to the Indian Ocean in 1905.
1931 39, 6 p., 1 folded table, roy. 4to, paperbound (printed covers). Published in: Transactions of the Linnean Society of London. Part X of The Percy Sladen Trust Expedition to the Indian Ocean in 1905.