Macrothrix australiensis sp. nov., parthenogenetic female from Lake Fox (individuals from culture of A.V. Makrushin), South Australia, collection details unknown, AAK-2005-197. A, Valve. B, Dorsal pore. C, Armature of ventral margin of valve. D, Central part of valve. E, Postabdomen. F, Postabdominal claw. G–H, Exopod and endopod branches of antenna II. I, Central part of lateral seta of basal endopod segment of antenna II. J, Swimming setae of antenna II. K, Apical spines of antenna II. Scale bars: 0.5 mm for A, 0.1 mm for E, J–K, 0.05 mm for D, H, 0.02 mm for F, 0.01 mm for B–C, G, I.