154 
46. Uppermost Pre below lateral line; origin 
of dorsal before that of ventrals; end 
of anal behind adipose fn....... M. malayanum p. 171. 
B. The first PO and the two PVO form an oblique 
angle, all the 5 VO in a ventral series. A supra- 
and infracaudal luminous patch. (Lampadena). .. M. luminosum p. 172. 
I. Myctophum micropterum Br. 
Myctophum (Lampanyctus) oculium Brauer, Zool. Anz. XXVIII. 1904, p. 396. 
(nec Garman). 
Myctophum (Lampanyctus) micropterum Brauer, Deutsche Tiefsee-Exp. Tiefsee- 
fische, 1906, p. 239. 
Fig. 59. Myctophum (Lampanyctus) micropterum Br. (after Brauer). 
Is infra- and supracaudal luminous scales. 
D. 13-10; A, 16—18 3 P. 10-12 Vo iS; ee lies. 
Height 5—5'/,, head 3'/,—3'/,, eye 4'/,—5, 1'/, times as 
long as snout. Upper jaw with its posterior end slightly dilated, 
surpasses eye with more than one eye diameter. Praeopercular 
border very oblique. Origin of dorsal behind ventrals, in the 
middle of the length or somewhat before it. Origin of anal 
below middle of dorsal, behind middle of length, ending below 
adipose fin. Pectorals not reaching to ventrals, below middle of 
height of body. Scales cycloid. Luminous organs kidney-shaped. 
A small antorbital organ ventrally at the frontborder of the orbit. 
Two superposed opercular organs behind the upper jaw, 3 bran- 
chiostegal organs. 5 PO, the fourth quite outside the series above 
the interspace between the third and fifth, on the level of 
the pectoral fin or somewhat higher. The 2 PVO in a ver- 
tical line above each other and above the interspace between 
the first and second PO, the dorsal one close before the 
middle of the base of the pectorals. PLO near lateral line, 
before the vertical of the 2 PVO. 5 VO, the second outside 
