;EK-layer;Dorsal;Ventrolateral;Ventral "O. albicans";+/Ø;+/Ø;+/Ø "O. angrensis";+/Ø;+/Ø;+/â "O. flavoguttata";+/Ø;+/â;+/Ø "O. humilis";+/Ø;+/â;– "O. perpusilla";+/Ø;–;+/â "O. trapicheroi";+/Ø;–;– "O. v-signata";+/Ø;+/Ø;+/Ø "S. similis";+/Ø;+/Ø;– "S. hayii";+/â;–;– "S. x-signatus";+/Ø;+/Ø;–