Fig. 5. Otothyropsis marapoama, a in Description and relationships of Otothyropsis marapoama, a new genus and species of Hypoptopomatine catfish (Siluriformes: Loricariidae) from rio Tietê basin, southeastern Brazil

Fig. 5. Otothyropsis marapoama, a) branchial skeleton in dorsal view, except for upper elements of right side in ventral view, anterior to top, paratype, LIRP 5641, 24.2.mm SL; b) Upper pharyngeal toothplate in lateral view, showing its reduced condition relative to fourth infra-pharyngobranchial, Anterior to left paratype LIRP 4621, 27.6 mm SL (see Schaefer, 1991, fig. 5 a, b and c for comparisons).