N0.1263 JAPANESE TRACHINOID FISHES— JORDAN AND SXYDER. 471 
8. PTEROPSARON EVOLANS Jordan and Snyder, new species. 
Head 3^^ in length, depth 7i; depth of caudal peduncle -If in head; 
Q\Q, 3^; snout 3i; interorbital space about 17; pectoral 5 in length; 
ventral b\\ caudal 5^; D. VI, I, 21; A. 27; scales in lateral line 32; 
in transverse series 8; between lateral line and insertion of spinous 
dorsal 2. 
Body elongate, cylindrical, the caudal peduncle compressed; head 
long, pointed. Eye verj' large, high in head, directed obliquely 
upward; interorbital space very narrow, flat. Snout pointed, some- 
what spatulate. slightlv longer than diameter of eye. Upper jaw pro- 
jecting. Mouth large, the cleft oblique, premaxillary protractile, 
Fig. 2. — Pteropsaron evoi-ans, 
maxilkuT extending posteriorly to center of pupil. Teeth slender, 
sharp, in narrow bands on both jaws; no canines; no vomerine or 
palatine teeth. Gill-rakers on tirst arch + 9, short, blunt, with 
minute seta?. Opercle with a weak, flat, concealed spine, preopercle 
entire. 
Bodv covered with large, smooth scales; occiput with scales, opercle 
with 4 or 5 large, very thin scales, head otherwise naked. Lateral 
line straight. 
Dorsals widely separated, the first very long and falcate, its height 
a little less than twice the length of head, the tirst 1 spines longest, 
the others much shorter; soft dorsal much lower, the highest rays 
contained about two times in head. Anal fin inserted a little anterior 
to insertion of soft dorsal; the tirst and last rays short, the middle 
ones greatly developed, their height a little more than length of head, 
the distal half of the longer rays extending beyond, the membranes, 
