Fig. 3 in Previously undescribed dental arrangement among electric knifefishes, with comments on the taxonomic and conservation status of Tembeassu marauna Triques (Otophysi: Gymnotiformes: Apteronotidae)

Fig. 3. Radiograph (inverted) showing the left side of the anterior region of head of the male paratype of Tembeassu marauna (MZUSP 23090), also exhibiting the conspicuous forward extension of the fleshy ("boneless") portions of the upper and lower jaws, in front of the premaxillary (PM) and dentary bones (DE), respectively. Additional abbreviations as in Figure 2. Arrow at left indicates the patch of extra teeth loosely attached to soft tissue at the roof of oral cavity, in front of the premaxillary bones, at the anteriorly extended portion of the upper jaw. Scale bar ~ 5 mm.