Unio gerardi

Brown, T. (1837-1849). Illustrations of the Fossil Conchology of Britain and Ireland, with Descriptions and Localities of all the Species. Smith, Elder, and Co., London & MacLachlan and Stewart, Edinburgh. viii + 273 pp., pls 1-98. Pp. 1-36, pls 1-30, 35, 37 [1837]; 37-52, pls 31-34, 38-48 [1838]; 53-60, pls 49-50, 52, “56” [later 55], 57, 60-62 [1839]; 61-80, pls 20*, 21*, 29*, 51, 58-59, 63, 66-71, 74 [1841]; 81-88, pls 64-65, 66*, 66**, 72, 72*, 73, 76 [1842?]; 89-108, pl. 75 [1843]; 109-116, pls 77-82, 84, 88 [1844]; 117-136, pls 52*, 53, 53*, 54, 54*, 55*, 56, 56*, 74*, 85-87, 89-96 [1845]; 137-273, i-viii, Errata, pls 3*, 20**, 33*, 37*, 61**, 61***, 83, 97-98 [1849].