denly by several short postero-laterals. Nostrils nearly 
level with upper eye edge. Interorbital convex. Broad in- 
fraorbital on cheeks wider than eye, touches preopercle 
edge below but not behind. Postorbital width about 3/5 of 
eye, Gilli-rakers 9 - ll, lanceolste, about half of filam- 
ents, latter 1 1/3 in eye. Scales with apical marginal 
striese becoming more numerous with age, 16 to 50; basal 
eirculi rather fine. Dorsal origin about midway between 
front nostril and caudal base, depressed fin slightly 
less than half way to latter. Small adipose fin little near- 
er caudal base than depressed dorsal tip, about midway in 
smaller examples. Anal origin opposite last third of dorsal 
base, front rays moderate and with basal -scales. Pectoral 
7/8 to ventral, latter inserted well before dorsal and not 
quite reaching anal. In alcohol: uniform brownish, sides 
snd below paier or brassy. Humeral and caudal dark spots, 
af present, not visible now. Length 78 to 105 mn. 
Five examples from Rio Kimac, Lima, Peru. According 
to the figures. 
Compered with larger examples of A. rutilus (Jenyns) 
from Rio Grende do Sul, latter has much larger eye and nar- 
rower infraorbital, which does not touch preopercle ridge. 
16 7 he 
Jenyns figure also shows the same descrépancies, besices the 
anel beginning clearly behind the dorsal base. 
ree ree ae — 
16 Voy. Beagle Zool. 1842, P 
