Figure 9 from: Mercado-Salas N, Suarez-Morales E (2014) On Kiefer's American Eucyclops (Copepoda, Eucyclopinae): redescriptions and comments on the historical records of E. delachauxi, E. prionophorus, E. bondi and E. leptacanthus. ZooKeys 402: 1-41. https://doi.org/10.3897/zookeys.402.6112

Figure 9 - Eucyclops prionophorus Kiefer, 1931. Original drawings of F. Kiefer. Female A Male B–C from San Bernardino, Paraguay. A Genital double-somite and P5 B P5 C P6. Scale bars: A, C = 50 µm, B = 20 µm