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ID: ptc-5906
Shells by George B. Sowerby II, Mollusca 31, Part 23 from Proceedings of the Zoological Society of London, 1855
ID: ptc-6294
Round Combshell by George Brettingham Sowerby, from Conchologia Iconica, or, Illustrations of the Shells of Molluscous Animals, London by Lovell Augustus Reeve, 1843-1878
ID: b1133187_3
Larvae, first stages of barnacles, from Darwin's A monograph on the sub-class Cirripedia
ID: b1133187_2
Stalked, or goose barnacles, from Darwin's A monograph on the sub-class Cirripedia
ID: b1133187_1
Acorn barnacle, Megabalanus tintinnabulum,from Darwin's A monograph on the sub-class Cirripedia
ID: b1133187