378 
Though Jordan and Starks have separated the Japanese form 
as Exonautes hraohycephalus, their figure and incomplete description 
do not reveal any tangible chai^cters for distinction as may be seen 
from the following: 
Depth 6 1 / 5 ; head 44/5. Snout 5 4/5 in headj eye 3 l/s, 
greater than snout; maxillary reaches opposite front eye edge, length 
4 1/5 in head; interorbital little greater than eye, low, concave 
medially. 
Scales 49 in lateral series; 34 predorsal. Lateral line as 
conspicuous ridge along lower sides of belly. 
D. ^ 9, first branched ray about 1 9 /IO in head; A. Ij 11, 
first branched ray 3; least depth of caudal peduncle 2 4/5; upper 
caudal lobe about 1 2/5 in lower, which 3 7/8 in rest of fish; ventral 
3 1 / 5 ; pectoral 1 2 / 5 , reaches opposite base of last dorsal ray, second 
simple ray 1 2/5 in fin length (first branched ray). 
