Description Figure 3. Scanning electron microscopy of Neoechiniscoides aski.A–C, female. A, habitus of mature female. Scale bar: 10 μm. B, close-up of gonopore with associated cuticular plate and anus. Note muscle attachment sites located lateral to the female gonopore. Scale bar: 10 μm. C, close-up of head region. Note the cuticular sculpture of the head. Scale bar: 10 μm. D–H, male. D, second leg, with dome-shaped sense organ (p2). Scale bar: 1 μm. E, habitus of adult male. Scale bar: 10 μm. F, prominent dorsal cuticular attachment sites of the caudal segment. Scale bar: 1 μm. G, posterioventral part of a male, showing the fourth leg pair, anal system and gonopore. Anterior is to the left. Scale bar: 10 μm. H, close-up of head region of male. Note the relatively large secondary clavae. Scale bar: 1 μm. Abbreviations: an, anus; cE, cirrus E; cl, claw; ec, external