Fig. 3 in A New Species of Hisonotus (Siluriformes, Loricariidae) of the Upper Río Uruguay Basin

Fig. 3. Scanning electron micrograph of snout anterior rostral margin of Hisonotus ringueleti (AMNH 230702, female, 33.2 mm SL), scale bars 0.5 mm. Top, anterior view showing biserial arrangement of odontodes, 20×; bottom, magnification showing faceted odontodes of the ventrad series, 80×.