Fig. 18From: The male sexual apparatus in the order Scorpiones (Arachnida): a comparative study of functional morphology as a tool to define hypotheses of homologyHemispermatophores of Vaejovidae Thorell, 1876. Paruroctonus utahensis Williams, 1968 (U.S.A, New Mexico, MCZH 15845) (a–c). Vaejovis dugesi Pocock, 1902 (México, Sierra de Lobos, ITESI-S046) (d–e). Lateral (a, d), anterior (b, e) and contra-lateral (c, f) aspects. Abbreviations: lh (lateral hook), mp (mating plug). Scales, 1 mm (a), 0.5 (b–d), 0.25 mm (e–f)Back to article page