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Developmental stages of H. bacteriophora. A Eggs; B Stage 1; C Stage 2; D Feeding stage 3; E Infective stage 3; F Stage 4; G Hermaphrodite (arrow undeveloped vulva); H Mature female (arrow protruding vulva); I Adult male nematode (arrow specula). Scales: A = 12 μm; B = 25 μm; C = 10 μm; D–F = 50 μm; and G–I = 100 μm. Figure used with permission [53]
