837 . 
Quincunica Gilbert and Hubbs , Bull. U. S. Nat. Mus., No. 100, vol. 1, 
f). 432, 1920 (Typo Coelorhynchus argentatus Smith and Radcliffe, 
orthotypic.) 
Oxygadus Gilbert and Hubbs , Bull. U. S. Nat. Museum, No. 100, vol* 1, 
p. 515, 1920. (Typo Maorurus parallelus Gffnther , orthotypic.) 
Body with trunk short, usually less than head, compressed, tail 
long and tapering. Head compressed, large. Snout usually projecting, 
long, short or obtuse. Mouth wide, lateral, inferior, sometimes sub- 
terminal. Mandibular barbel present, often small. Teeth in villifoxm 
bands, varying above to but 2 or 3 irregular series and below to uni- 
serial or irregularly biserial. Interorbital wide, flat. Suborbital 
ridge contiguous to preopercle. Median rostral, occipital and postor- 
./ ' ' ' 
bital ridges developed or prominent. Gill openings wide. Gill membranes 
broadly united in front, joined to isthmus, leaving very narrow fold. 
Gill rakers few, low spinescent tubercles on second gill groh, still 
fewer on first gill arch. Branohiostegals 6. Scales with apical 
spinules, sometimes in quincunx or again in parallel, divergent or 
radiating ridges. Scales along dorsal and anal bases without enlarged 
spines. Lateral line slightly arched along side of trunk, axial along 
side of tail. Second simple dorsal ray pungent, often ends in filament| 
front edge entire or smooth. Interdorsal space usually long. Dorsal, 
ventral and pectoral origins often nearly in same vertical plane, close 
behind head. Pectoral with 13 to 19 branohed rays. Ventral with 5 or 6 
branched rays, outer simple ray filamentous or somewhat prolonged, inserted 
before pectoral. Vent close to or remote from anal. One or 2 large fossal 
