FIGURE 4. A–E in New and previously known species of Oenonidae (Polychaeta: Annelida) from Lizard Island, Great Barrier Reef, Australia

FIGURE 4. A–E, Arabella (C.) mutans (Chamberlin, 1919); F–K, Arabella (C.) robusta n. sp. A. Maxillae and carriers, dorsal view, left MxIV and MxV broke during mounting, arrow at beginning of the furcula; B. Maxillae, both MxI gracile falcate and MxII long, left MxIII missing third tooth, dorsal view; C. Left MxI gracile falcate and MxII long, right MxI robust dentate and MxII short, dorsal view; D. Maxillae, dorsal view; E. Mandibles, ventral view. F. Mandibles; G. Maxillae and carriers, right MxI and MxII broke during mounting, dorsal view, arrow at beginning of the furcula; H. Maxillae, right MxI and MxII broke during mounting, dorsal view; I. Right MxIII, anteriormost tooth broke during mounting, ventral view; J. Bilimbate chaetae, right parapodium 20; K. Ventralmost chaetae tapering abruptly to guards, right parapodium 40. A, C, AM W.44908; B, E, AM W.44855; D, AM W.44798; F–H, J, K, AM W.44355; I, AM W.43916. Mx = maxillary plate.