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)

Pectoral-fin girdle of Discotrema crinophilum (ROM 85350, 25.4 mm SL). A Right side in lateral view (anterior to left, image reversed); B close-up of elements of pectoral-fin endoskeleton articulating with pectoral-fin rays (left side) in lateral view (anterior to left), dorsal postcleithrum removed. Abbreviations: AO, accessory ossicle; Cl, cleithrum; Cor, coracoid; DPcl, dorsal postcleithrum; PcLFi, postcleithral fimbrae; PecFR, pectoral-fin rays; PecR1–4, pectoral radial 1–4; Pt, posttemporal; Sc, scapula; Scl, supracleithrum; VPcl(a), ventral postcleithrum (anterior); VPcl(p), ventral postcleithrum (posterior).