Galaxiidae Müller, 1846

Raadik, Tarmo A., 2014, Fifteen from one: a revision of the Galaxias olidus Günther, 1866 complex (Teleostei, Galaxiidae) in south-eastern Australia recognises three previously described taxa and describes 12 new species, Zootaxa 3898 (1), pp. 1-198 : 21

Family Galaxiidae Müller, 1846 .

Diagnosis (modified from McDowall & Frankenberg 1981). Distinguished by the following combination of characters: small to medium sized (39–580 mm); body elongate, generally cylindrical to laterally compressed, scale-less; primary trunk lateral line as a series of closely-spaced superficial neuromasts within a mid-lateral crease, accessory lateral line present in some species as a bilateral linear series of superficial, widely-space neuromasts along the dorso-lateral trunk; laterosensory pores and cutaneous sensory papillae present on head; nostrils well developed, anterior one set in a small depression and tubular, posterior one a simple aperture; maxilla usually partly included in gape but toothless (excluded in Lovettia ); teeth usually conical, uniserial on premaxilla and dentary uniserial; mesopterygoidal, basihyal and pharyngeal teeth developed (reduced or absent in Neochanna ); vomer shafted but toothless and palatine toothless; enlarged laterally opposing canine teeth in many species; sexes usually similar; both gonads well developed, though left sometimes larger than right, urogenital aperture generally on a papilla in a post-anal depression (protruding in Lovettia ).

All fins lacking spines; dorsal fin originates either above and slightly posterior to pelvic fin base ( Aplochitoninae ) or well back on trunk above, slightly forward or behind vent, 5–19 segmented fin rays; anal fin originates well back on trunk, behind vent, 6–19 segmented fin rays; caudal fin emarginate to truncate, less often forked or rounded, 11–19 principal rays, usually 16 (14 branched); pectoral fins inserted just posterior to head, most anterior extent of fin base usually below ventral margin of eye (except in Brachygalaxias and Galaxiella ), 9–18 segmented fin rays; pelvic fins abdominal, occasionally absent, 4–9 segmented rays, usually 6–7; procurrent rays usually moderately developed along caudal peduncle, also anterior to dorsal and anal fins; adipose fin generally absent (except in Aplochitoninae ); 0–6 pyloric caecae, usually 0–2; vertebrae 36–73; gill rakers (on first arch) 6–21.