FIGURE 5 in Filling in a biogeographic gap: the first Trichomycteridae from the Parnaíba River basin (Siluriformes: Trichomycteridae)

FIGURE 5 | Suspensorium and opercular apparatus of Ituglanis crispim, paratype, MZUSP 126756, 29.7 mm SL (c&s). Lateral view. Abbreviations: metapterygoid (MT); quadrate (QU); preopercle (PO); interopercle (IO); opercle (OP); hyomandibula (HY); dentary (DE), and anguloarticular (AA). Image from right side, inverted to conform to standard position. Scale bar = 0.5 mm.