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 Guide to Freshwater Invertebrates - SP68 Key to the Case Bearing Caddis Larvae - *NEW REPRINT* - SP61 A Guide to Estimating Microbial Numbers and Biomass in fresh water - SP39 Freshwater Biology and Ecology Handbook (digital copy with £5 donation) Freshwater Leeches of Britain and Ireland SP69
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