FIGURE 5 in Ituglanis compactus, a new species of catfish (Siluriformes: Trichomycteridae) from the rio Jari drainage, lower Amazon, Brazil

FIGURE 5. Left side view of the caudal skeleton. a) Ituglanis compactus, INPA 13006, 22.4 mm SL; b) Ituglanis gracilior, MCP 36241, 42.4 mm SL; c) Ituglanis macunaima, MZUSP 103799, 46.3 mm SL; d) Ituglanis proops, MZUSP 60255, 55.6 mm SL. NPU1, neural arch of the preural centrum 1; PU1+U1, compound centrum formed from preural 1 and ural centrum 1; PU2, preural centrum 2; HE, hemal spine; NE, neural spine; NSPU1, neural spine of the preural centrum 1; H3, hypural 3; H4+H5, hypurals 4 and 5 fused; H3+H4+H5, hypurals 3, 4 and 5 fused; PH+H1+H2, parhypural and hypurals 1 and 2 fused; UN, uroneural. Scale bar = 1 mm.