TY - JOUR T1 - The Variations Occurring in Certain Decapod Crustacea.-- I. Crangon vulgaris JF - Proceedings of the Royal Society of London (1854-1905) VL - 47 SP - 445 EP - 453 PY - 1889/01/01/ UR - http://dx.doi.org/10.1098/rspl.1889.0105 M3 - doi:10.1098/rspl.1889.0105 AU - Weldon, W. ER -