FIGURE 6. Acrobeles undulatus Loof, 1964, photomicrographs. A-C in Descriptions of species of Acrobeles von Linstow, 1877 (Nematoda, Rhabditida, Cephalobidae) from Kelso Dunes, Mojave National Preserve, California, USA

FIGURE 6. Acrobeles undulatus Loof, 1964, photomicrographs. A-C. Male spicules and gubernaculum at different focus levels (arrow indicates velum in C). D. Male genital papillae (arrows). Scale bars=20 µm.