708 Suborder Heterosomata 
with hooks; it is suggested that one reason may be that spillers 
are mostly used by day, whereas the sole is a night feeder. 
They are sometimes angled for with the hook, baited with 
crabs, worms, or mollusks; the most favorable time for fishing 
is at night, after a blow, when the water is thick, while a land 
breeze answers better than a sea breeze.’’ 
Several smaller species of sole are found in Europe. In 
Japan Zebrias zebra, black-banded, and Usinosita japonica, 
known as Usinéshita, or cow’s tongue, are common. Farther 
south are numerous species of Synaptura and other genera peculiar 
to the Indian and Australian regions. 
The Tongue-fishes: Cynoglossine.—The tongue-fishes are soles 
having the eyes on the left side not separated by a bony ridge, 
the two being very small and apparently in the same socket. 
The body is lanceolate, covered usually with rough scales, 
and as often with two or three lateral lines as with one. The 
species are mostly Asiatic. Cynoglossus robustus and other spe- 
cies are found in Japan, and in India are many others belong- 
ing to Cynoglossus and related genera. The larger species are 
valued as food. The single European species Symphurus nigres- 
cens, common in the Mediterranean, is too small to have any 
value. Symphurus plagiusa, the tongue-fish of our coast, is 
Fic. 610.—Symphurus plagiusa (L.). Beaufort, N. C. 
common on our sandy shores from Cape Hatteras southward. 
Symphurus plagusia, scarcely different, replaces it in the West 
Indies. Symphurus atricandus is found in San Diego Bay, and 
numerous other species of no economic importance find their 
place farther south. 
