Image of jawed fish

Description:

Figure 3.a Hisonotus acuen, holotype, MZUSP 115350, 25.9 mm SL, showing the yellowish-tipped teeth b Hisonotus chromodontus, NUP 10924, 29.7 mm SL, showing the reddish-brown teeth c Hisonotus acuen, holotype, MZUSP 115350, 25.9 mm SL, showing the caudal-fin color pattern mostly hyaline, except for dark blotch on origin of rays, and dark brown chromatophores largely concentrated on rays near lower caudal spine d Hisonotus chromodontus, LBP7964, 27.3 mm SL, showing caudal-fin dark brown with chromatophores largely concentrated on rays and membranes, and with two hyaline spots on middle of the fin.