133 
Eye generally 2, but it may be smaller or larger, according 
to which the point of the snout is situated above or below 
the level of the ventral margin of the eye. For position of 
fins and teeth see the diagnosis of the genus. 
Luminous organs: a postorbital behind middle of eye, incon- 
Fig. 48. Sternoptyx diaphana Herm. 
spicuous in full grown specimens. A suborbital one close to 
the praeopercular spine. One ventrally on the operculum. A 
on group of 3 on branchiostegal membrane. In the ventral series 
a group of 5 on the isthmus, 10 in a close-set series on each 
side along the ventral edge. A group of 3 between ventrals 
and anal, situated far above the ventral contour. A group of 
3 at the beginning of the tail above the transparent integumen- 
tary fold. A single organ slightly above and before it. A group 
of 4 small ones between anal and caudal. A group of 3 above 
the base of the pectorals. Silvery, back darkish, fins translucent. 
Length 45 mm. 
Habitat: Bali Sea (1310 m.)!; Flores Sea (1600 m.)!; Banda 
Sea (2477 m.)!; Timor Sea (828 m.); Manipa straits (1536 m.)!; 
Ceram Sea (surface)!; Molucco passage (1500—100 m.)!; Celebes 
Sea (1264 m.)!. Pacific: between Yeddo and Australia; east- 
