170 
Habitat: Molucco Passage (1500—o M., vertical net)!; 
Celebes Sea off Mindanao (457 M.); West Coast of Sumatra 
(371 M.). — Andaman Sea, Red Sea. 
14. Myctophum splendidum Br. 
Myctophum (Nyctophus) splendidum Brauer, Zool. Anz. XXVIII. 1904, p. 399. 
Myctophum (Diaphus) splendidum Brauer, Deutsche Tiefsee-Exp. Tiefseefische, 
1906, p. 218. 
Diaphus splendidus Max Weber, Siboga Exp. Fische, 1913, p. 90. 
D. 13—15; A. 15—16; P. 11; V. 8. L.1. 38—39. 
Height somewhat above or below 5, head 3—3'/,, eye 3'/, 
to more than 4, '/, longer than rounded snout. Upper jaw 
with its hinder end scarcely dilated, surpassing eye by about 
one eye diameter, Praeopercular margin oblique. Origin of 
dorsal above origin of ventrals, before middle of length. Origin 
of anal slightly behind end of dorsal, somewhat before be- 
ginning of last '/, of length, ending below adipose fin. Pectorals 
far below middle of height, not reaching the ventrals. Caudal 
forked. Scales cycloid. Luminous organs: 2 united antorbital 
organs before anterior border of eye, not extending on ven- 
tral orbital margin. 2 operculars, obliquely above each other, 
the smaller lower one behind upper jaw; 3 branchiostegals; 
5 PO, the fourth outside the series, far above the space 
between third and fifth, first and second far more distant than 
the following. The 2 PVO in an oblique line, the superior 
before the ventral base of the pectoral, the inferior above the 
space between the first and second PO. PLO between 
lateral line and upper pectoral base, nearer to lastnamed, at 
its lower border a large, luminous scale. 5 VO, the second and 
third outside the series, the third higher than the second. 
10—13 AO in two groups, the anterior above the anal with 
5—7, the anterior and posterior of which are situated higher 
up outside the series, the first upwards before or above the 
second; the posterior group contains 4—6 organs, in one series 
behind the anal, the last of them generally smaller. 4 Pre, 
the hindermost distant from the 3 anterior and situated close 
to the lateral line. VLO between ventral and lateral line, 
much nearer to lastnamed. 3 SAO in an oblique or very 
slightly concave, ascending line above the space between 
last VO and vent; the middle one close to it, the uppermost 
