Mugilidae. 
Mugil cephalus Linnaeus. 
Two from Lima, and one from each of the following, 
Peru, Callao and Valparaiso. Length 175 to 2350 mm. Except 
the Valparaiso example, which has A. III, 9, all the others 
have A. III, 9a, and appear to agree in most details. fhe 
Valparaiso example hes 30 to 58 gill-rakers and the scales 
with 11 or 12 basal marginal radii. Italian examples in the 
Acedemy 185 mm. long have the gill-rekers about 33 - 46 
end the scales with 8 to 10 basal radii. The smaller examples 
sre all without much, or little, trace of the adipose eye- 
Laks 
he Querimana stage, shows: Head 3 1/5; 
depth 4; D>. IV-1,1,8; A. -3 S; scales about 42 from shoul- 
der to caudal base; 14 scales transversely at soft dorss 
origin; 17 predorsal scales to head; snout 
3 1/8; maxillary 327; interorbital 3; length 
gill-rakers 17 - 32 and scales with 8 or 9 basal 
striae and 8 to 10 circuli apically. Compared with a similer 
example in the Academy 39 mm. long from Honolulu, the gill- 
rekers are 10 - 20 and about ¢ 
= 
long as gilli-filaments 
scales with 6 to 8 basal marginal striae and 
circuli. In proportions, etc., the Honolulu example agrees 
Another small example in the A 
i Souleyet, 
& 
ye M. cephalotus Eydoux an 
fairly well with the original figure, 
