Figure 5 in Development of an interactive identification key for Oncaeidae (Copepoda: Cyclopoida)

Figure 5. Characteristics of P1- or P2-bearing somite in oncaeid species. (A) P1-bearing somite with dorsal protrusion ([original] undescribed morphospecies Oncaea sp. 4.2, cf. Böttger-Schnack and Schnack 2013, table 3); (B) and (C) P2-bearing somite with dorsal projection or swelling: (B) Triconia conifera [from Böttger-Schnack 1999]; (C) T. rufa [from Böttger-Schnack 1999].