Marcopoloichthys furreri sp. nov., illustrating the dorsal, anal, and pelvic fins and associated structures (holotype PIMUZ A/I 2886). Oblique lines represent damaged areas. Abbreviations: a.fr, anal fin rays; a.prra, anal proximal radials; c.dpra, compound dorsal proximal radial element; d. dra, distal dorsal radial; d.fr, dorsal fin rays; ha+sp, haemal arch plus spine; int.d, interdorsal element; int.v, interventral element; l.aprra, last anal proximal radial; l.dpra, last dorsal proximal radial; m.dra?, middle dorsal radial; na+sp, neural arch plus spine; sc, scales; 1st aprra, first anal proximal radial; 1st ha, first haemal arch. Scale bar: 1 mm.