2184 
t 
D. Ill, 8, I, first branched ray 2 in head; adipose fin length 
4 1/3; A. Ill, 9, I, first branched ray 4 1/5; caudal 1 l/2, well 
forked; least depth of caudal peduncle 3 l/8; pectoral 2 3/4; ventral 
1 2/3. 
Brown, akin where scales have fallen dusted finely with dusky. 
Adherent scales with silvery white reflections and iridescent tints. 
Iris and sides of head similar. Fins whitish, bases of dorsal and 
caudal blackish. 
Diagnosis , Related to Diaphus intermedius Borodin but differs in 
the larger lower antorbital luminous body and but 3 postanal photophores 
in place of 5. 
Type — No. I» S. N. M. 
Diaphus diadematus T@nihg resembles this species in its luminous orbital 
organs, though it has 5 f 5 anal photophores, its suprapectoral over or 
before the pectoral origin and well before the second pectoral photophore. 
D. 5229. Talong Island (1.), S. 17° W., 5.75 miles (N. Lat. 10°48*45" 
E. Long. 124°21*15 rt }, between Cebu and Leyte. In 290 fathoms. May 7, 
1908. Length 38 mm. 
