Fig. 1. A in Genetic characterisation of Echinocephalus spp. (Nematoda: Gnathostomatidae) from marine hosts in Australia

Fig. 1. A, Anterior end of Echinocephalus larva from Octopus djinda (formerly Octopus O. aff. tetricus), showing six rows of hooks on the cephalic inflation; B, Apical view of the spiniform papillae on the larva from O. djinda, showing a posterior row of three papillae; C, Apical view of the spiniform papillae on the larva from Codakia paytenorum, showing posterior row of three papillae joined by irregular areas of sclerotization. Scale bars: Fig. 1A and 40 μm; Fig. 1B and C, 10 μm.