FIGURE 2 in New species of Achirus (Pleuronectiformes: Achiridae) from Northeastern Brazil

FIGURE 2. Schematic drawing of eyed-side lateral view of head showing internal features of branchial chamber in A. mucuri (a) and A. lineatus (b), and external latero-sensory cephalic canal pattern related to main external features of head, plus anterior part of trunk lateral line in A. mucuri (c) and A. novoae (d). Canal names: 1, pterotic + preopercular + mandibular; 2, extrascapular; 3, trunk lateral line; 4, supratemporal; 5, supraorbital; 6, epiphyseal branch of supraorbital; nasal not represented; arrows indicate distal end of infraorbital canal. For more details see Ramos (2003, Fig. 1).