D. Ill, 9, I or III, 10, I, first branched ray 1 4/5 to 1 7/8 
in total head length; adipose fin 4 1/3 to 5 1/5; A. Ill, 10, I or III, 12 
I, first branched ray 2 to 2 3/4?; caudal 1 1/4? forked; least depth of 
caudal peduncle 3 l/5 to 3 1/2; pectoral 1 1/8 to 1 l/3; ventral 2 1/8 
to 2 1/5. 
Brown, scale pockets variably darker. Inside gill opening blackish. 
Iris gray, with whitish luminous areas. Fins pale or whitish. 
Diagnosis . Greatly like Lampanyotus longipes (Brauer) except that 
the supraventral photophore much lower or its position about upper 2/5 
in space between ventral origin and lateral line (very close below 
lateral line in L^ an yotus longiges). In this respect it is more like 
Lampanyotus nigrum (Gttnther) but that species with 7 posteroanal photo- 
phores, the present species like Lampanyotus longipes or only with 3 or 
4. Moreover the suprapectoral of the present species is variably above 
or close below the beginning of the lateral line. It further differs 
from Lampanyctus longipes in the absence of postocular photophores and 
its more widely spaced opercular photophores, the upper quite high or 
nearly level with lower eye edge. 
Type , No. U. S. N. M. 
D. 5507. Gamp Overton Light, Iligan Bay (Mindanao), S* 1° E., 8.6 miles 
(N. 8°21*12 w E. 124°12*6 M )• In 425 fathoms. August 4, 1909. Length 68 
to 80 mm* 3 examples. Type and paratypes. 
