A new generic name for the “Lepadichthys” lineatus complex with a rediagnosis of Discotrema, a senior synonym of Unguitrema, and comments on their phylogenetic relationships (Gobiesocidae: Diademichthyinae)

Surface features of adhesive disc (A ROM 72940, 26.5 mm SL, cyanine stain) and internal supporting skeleton of paired-fin girdles (B–D SAIAB 9319, 25.0 mm SL) of Rhinolepadichthys polyastrous. B Pelvic disc supporting skeleton, including elements of pelvic- and pectoral-fin girdle in ventral view (anterior to top of page), outline of pelvic-fin spine and rays highlighted by thin white-dashed line; C pectoral-fin girdle (right side) in lateral view (anterior to left, image reversed); D close-up of elements of pectoral-fin endoskeleton articulating with pectoral-fin rays (right side) in lateral view (anterior to left, image reversed). Abbreviations: A–C disc region A–C; Bp, basipterygium; Cl, cleithrum; Cor, coracoid; DPcl, dorsal postcleithrum; I, pelvic-fin spine; PcLFi, postcleithral fimbrae; PecFR, pectoral-fin rays; PecR1–4, pectoral radial 1–4; PelR1–4, pelvic-fin soft ray 1–4; Pt, posttemporal; Sc, scapula; Scl, supracleithrum; VPcl, ventral postcleithrum.