2223 
Diaphus caeruleus WEBER and BEAUFORT, Fishes Indo Austral. 
Archipelago, vol. 2, 1913, p. 168 (fig. 65 b on p. 171) 
(Molucca Passage, to 1500 meters). --^JORDAN and THOMPSON, 
Mem. Carnegie Mus., vol. 6, No. 4, Sept. 1914, p. (Sagami Bay). 
Scopelus engraulis GUNTHER, Rep. Voy. Challenger, vol. 22. 1887. 
p. 197, pi. 51, fig. C. Philippines, in N. Lat. 6°47* E. Long. 122°28 t , 
in 250 xatLams. -•-•ALCOCK, Ann. Mag. Nat. Hist., ser. 6, vol. 8, 
1891, p. 129 (Andaman Sea, in 188 to 220 fathoms); Journ. Asiatic 
Soc. Bengal, vol. 65, pt. 2, 1896, p. 333 (reference); Descript. 
Cat. Deep Sea Fishes, Indian Mus., 1899, p. 161 (Andaman Sea materials). 
s 
Depth 4 1/2 to 5; head 3 2/5 to 3 1/2, width 2 1/5 to 2 1/4. Snout 
5 l/2 to 6 in head; eye 3 4/5 to 4 1/4, greater than snout, 1 1/5 to 1 1/3 
in interorbital; maxillary reaches 1 to 1 1/2 eye diameters behind eye 
though not quite to moderately inclined hind preopercle edge, slender, length 
1 1/3 to 1 2/5 in head; interorbital 3 2/5 to 3 1/2, broadly convex. Gill 
rakers 9 f 13, lanceolate, slightly clavate, length 1 1/2 in eye, subequal 
with gill filaments. 
Scales 35 or 36 in lateral line, little enlarged; 4 above, 5 below, 12 
predorsal to occiput. Ventral with pointed axillary scale 1/4 fin length. 
Caudal base scaly. Scales all very caducous, mostly fallen. 
