The Squamipinnes 621 
water from the Red Sea to Tahiti. The coloration is rather 
plain olive or brown, sometimes with white spots, sometimes 
with bluish lines. The species are very much alike and all 
belong to the single genus Szganus. One species, Szganus 
fuscescens, dusky with small, pale dots, is a common food- 
fish of Japan. Others, as Siganus oramin and Siganus ver- 
muculatus, occur in India, and Szganus punctatus, known as lo, 
abounds about the coral reefs of Samoa. Siganus vulpinus 
differs from the others in the elongate snout. 
A fossil genus, Archoteuthis (glaronensts), is found in the 
Tertiary of Glarus. It differs from Szganus in the deeper body 
and in the presence of six instead of seven spines in the anal 
