Scheldt species source details
Mace, S.E. (1979). Senecella calanoides Juday (Calanoida, Copepoda), Mesocyclops leuckarti Claus (Cyclopoida, Copepoda) and Daphnia laevis Birge (Cladocera) in inland Wisconsin lakes. Transactions of the Wisconsin Academy of Sciences, Arts, and Letters 67:171-173.
100683
Mace, S.E.
1979
Senecella calanoides Juday (Calanoida, Copepoda), Mesocyclops leuckarti Claus (Cyclopoida, Copepoda) and Daphnia laevis Birge (Cladocera) in inland Wisconsin lakes.
Transactions of the Wisconsin Academy of Sciences, Arts, and Letters
67:171-173.
Publication
Available in Wilson Copepod Library (non-digital)
Available for editors 
Mesocyclops leuckarti (Claus, 1857) represented as Mesocyclops (Mesocyclops) leuckarti (Claus, 1857) represented as Mesocyclops (Mesocyclops) leuckarti leuckarti (Claus, 1857) (additional source)