Description of an exceptionally large new species of Diplophryxus (Crustacea: Isopoda: Bopyridae) from a Chilean alpheid (Crustacea: Decapoda: Alpheidae), with a key to species of Diplophryxus and a new genus for D. richardsonae Chopra, 1930. Proceedings of the Biological Society of Washington, 125(2), Aug 14 2012: 145-152. 147 [Zoological Record Volume 148]