Paul Mayer (1848 in Lüdenscheid â 1923 in Jena) was a German zoologist.
He worked as an assistant at ' in Naples. He studied several groups of marine animals, especially the Crustacea, in particular the Caprellidae. Mayer is especially known for his systematizing of histological techniques. He also wrote the treatise ' in 1920. He was a student of Ernst Haeckel.
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