Stemmiulus beroni Mauriès, 1989. A Habituses of ♂ (small specimen) and ♀ (large specimen) B head front view C gnathochilarium D leg-pairs 3 to 7 F first leg-pair (one) G, H leg-pair two, oral and caudal views, respectively I left paragonopod, oral view J, K leg-pair 8 (gonopods) oral and caudal views, respectively L, M apical part of right gonopod oral and caudal views, respectively. Abbreviations: f: flagella, fl: finger-like process. Scale bars 1 mm (A), 200 µm (B, D), 100 µm (C, F–H, J, K), 50 µm (L, M), 20 µm (E)