Shop › A Key to the Adults of the British Emphemeroptera. SP47. JM Elliott & UH Humpesch Image 1 of 1 A Key to the Adults of the British Emphemeroptera. SP47. JM Elliott & UH Humpesch £10.00 Add To Cart Added! You Might Also Like Freshwater Biology and Ecology Handbook (digital copy) Parasitic Protozoa in British Wild Animals - NO LONGER AVAILABLE Crustacea Malacostraca - SP52 Freshwater Biology and Ecology Handbook (paperback copy) A Key to the Freshwater Triclads of Britain and Ireland. - SP58