Keywords: FMIB 46410 Young specimen of an African River Crab (Potamon johnstoni), taken from the abdomen of the mother.jpeg check categories 19 August 2015 4 Young specimen of an African River Crab Potamon johnstoni taken from the abdomen of the mother Subject Crabs Potamon Tag Shellfish 1911 Cite book Life of Crustacea Calman W T New York the MacMillan Company 1911 Fig 31 Creator William Thomas Calman PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 46410 Images from the Freshwater and Marine Image Bank to check William Thomas Calman Brachyura Potamon |