Marcopoloichthys furreri sp. nov. Restorations of head in lateral view. Heads reversed to the left. A. Fish during rest, based mainly on specimens PIMUZ A/I 1958, PIMUZ A/I 2841, PIMUZ A/I 2886; and BNM 201166; B. Fish during feeding, based mainly on specimen PIMUZ A/I 1958, PIMUZ A/I 2887; and BNH 201166. Abbreviations: a.cer, anterior ceratohyal; a.na, accessory or additional nasal bone; ant? antorbital?; asp, autosphenotic; cl, cleitrum; clv, clavicle; de, dentary or dentosplenial; dsp, dermosphenotic; ect, ectopterygoid; ent, entopterygoid; exc, extrascapular; hh, hypohyal; io1–5, infraorbitals 1–5; iop, interopercle; lat.e, lateral ethmoid; met, mesethmoid; mx, maxilla; na, nasal bone; op, opercle; pa [=fr], parietal bone [=frontal bone]; par, parasphenoid; ppa+dpt [= pa+dpt], postparietal bone + dermopterotic [= parietal bone + dermopterotic]; p.cer, posterior ceratohyal; pcl 1–3, postcleithrum 1–3; pmx, premaxilla; pop, preopercle; qu, quadrate; sang, surangular; s.ap, serrated appendage; scl, supracleithrum; sob, suborbital; sy, symplectic; vo, vomer. Scale bars: 1 mm.