Nexilosus latifrons(Tschudi). 
Head 3; depth 1 7/8; vb. XIII, 20; A. II, 13; 22 tubes 
in upper arch of lateral line; 5 scales above lateral line 
to spinous dorsal origin, 2 to soft dorsal origin; 12 belowr- 
tolspinous anal origin; 34 predorsal scales; snout 3 in head; 
eye 5; maxillery 3 2/5; interorbital 2 3/4, 
Body rather elongately ovoid, back elevated, compressed, 
though robust; caudal peduncle length a>»out 2/3 its least 
depth. Snout convex in profile above nostril, then wey 
slightly concave forwerd; length 7/8 its width. Eye elishgly 
elevated, hind edge midway in head, Mouth short, broad, jaws 
about even, Maxillary slightly beyond nostril, though not 
nearly to eye; expansion 1 3/4 in eye. Lips rather tough, 
moderate, Teeth uniserial, ewen incisor-like though ends 
slightly convex. Nostril before eye about last third in 
snout. Interorbital well convex. Pororbital and preopercle 
edges entire. 
Rakers 9+11, lanceolate, 3 in filaments or about 2 7/8 
in eye, Scales in longitudinal rows, upper parallel with 
lateral line, which little more arched than upper profile of 
back, rows converging behind ; small scales on head above; 
most all body scales with axillery basal scales, sometimes 
but one, though usual several, or more as in predorsal, back, 
breast and belly; preorbital, lips, front of snout narrowly, 
