JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 247 
middle of eye, 2 in head; lower jaw barely longer than upper; snout equal in length 
to eye; preopercle finely serrate on both limbs; no canines present. 
Third and fourth dorsal spines subequal, half length of head; spine of soft 
dorsal 2.125 in head, its first two rays equal to post-orbital part of head. Anal 
inserted under second soft ray of dorsal, second spine 3 in head. Pectoral reaching 
nearly to anal, as do ventrals; caudal emarginate. Scales finely ctenoid, rather 
loose; lateral line as usual. 
Color nearly uniform, pattern lacking, save for an indistinct, small caudal spot; 
ventrals and spinous dorsal dark, latter black at tip. All other fins somewhat dusky. 
This species is apparently most closely related to Amia nigra (Déderlein) from 
which it differs in its longer spines, its soft dorsal and anal, longer pectorals, shorter 
maxillary, and lighter color of anal, ventral, and soft dorsal fins. 
121. Amia semilineata (Temminck & Schlegel). 
fs Sa) | EY ¥ 4S 
is 4 
Fic.19. Amaia semilineata (Temminck & Schlegel). (From Proc. U.S. N.M., Vol. XXIII, p. 903). 
122. Amia kiensis (Jordan & Snyder). 
“S 
Fic. 20. Amia kiensis (Jordan & Snyder). (From Proc. U. 8. N. M., Vol. XXIII, p. 906). 
