NO. 1265. SALMONOID FISHES OF JAPAN— JORDAN AND SNYDER. -585 
Head 4| in length: depth 4^; depth of caudal peduncle 2i in head; 
eye 5; snout 2|; maxillary If; D. 10; A. 15; scales in lateral series 
156, between lateral line and insertion of dorsal 18. 
Head small, the snout pointed. Mouth oblique, maxillar}' extend- 
ing past eye a distance a little greater than diameter of pupil; the 
sheath of the upper jaw longer than that of the lower. Gill-rakers on 
tirst arch 10+19, short and very slender. Palatine teeth are present, 
though very small. Height of dorsal contained 6i times in length; 
anal 8i; length of caudal 5i; pectorals 7; ventrals 8. The above char- 
acters are shown by a specimen about 180 millimeters long. Larger 
individuals, measuring 225 millimeters, have deeper bodies, shorter 
heads, and higher dorsal fins. A specimen from the market at Hiro- 
shima measures: Depth 3f in length; head -If; height of dorsal 5i; 
anal 8i; length of pectorals Of; ventrals 7i; caudal 5i. Occasionally 
the dorsal when depressed reaches the base of adipose fin. The dorsal 
Fig. 4. — Plecogi.ossus ai.tivei.is (from Formosa). 
rays number 10. occasionally 11, the anal 14 to 10. Color olivaceous, 
silvery below; always a light yellow bar or blotch above the middle of 
the pectoral on side; adipose fin edged with scarlet, dorsal somewhat 
shaded with dusky, anal with reddish. The young, to at least the 
length of 100 millimeters, have a broad silver}^ lateral band. The body 
is very elongate, the depth contained al)out Ti times in the length. 
Our specimens are from Ishikari River, Niigata, Aomori, Same, 
Matsushima, Sendai, Morioka, Tokyo, Tanagawa River at Tachikawa, 
Daiya River at Nikko. Gifu, Lake Biwa, Osaka, Wakanoura, Kobe, 
Hiroshima, Kurume. Nagasaki, and Tan Sin River at Taihoku, the 
capital of Formosa. Specimens from Formosa are a little larger than 
any from Japan, and with the anal possibh' a little longer as compared 
with the head. This form is apparenth' not diflerent specifically. At 
Gifu and Tachikawa, tame cormorants are largely in the capture of 
the Ayu, which is the most delicious of all eJapanese food-fishes. 
{alius., high; velurii^ sail.) 
