Figure 20 in Untangling the threads: phylogenetic relationships of threadfins (Percomorphacea: Perciformes: Polynemidae)

Figure 20. Medial view of leħ pectoral girdle of Eleutheronema tetradactylum, Polynemidae. A, superficial layers of muscles. B, deepest layers of muscles (AdSR, AdSF, RLA-OP and SV2 removed). Abbreviations: AbPRc, abductor profundus radii pars ceterae; AbSR, abductor superficialis radii; AdMF, adductor medialis fili; AdPF, adductor profundus fili; AdPRec, adductor profundus radii pars ectoprofunda; AdPRen, adductor profundus radii pars endoprofunda; AdR, adductor radialis; AdSF, adductor superficialis fili; AdSR, adductor superficialis radii; ArD, arrector dorsalis; BL, Baudelot's ligament; Cl, cleithrum; Co, coracoid; F, pectoral filaments; OSV, compound ventral ramus of occipito-spinal nerves; PcPr, postcoracoid process; R, pectoralfin rays; RLA-P, pectoral branch of the ramus lateralis accessorius; Sc, scapula; Scl, supracleithrum; SV1 and SV2, ventral ramus of spinal nerves 1 and 2. Scale bar: 2 mm. Adapted from Presti et al. (2020a).