Krukenberg, on pepsin in a Myxomycete, [16]
Kükenthal, [363]
Labbé, on Protozoa, [45];
monograph of Sporozoa, [102] n.
Labial plexus of Antedon rosacea, [587]
Labyrinthine shell-wall of arenaceous Foraminifera, [59], [66]
Labyrinthula, [90] f.
Lachmann, Claparède and, on Protozoa, [45];
on Suctoria, [162]