Remarks on Myctophum glaciale (Reinh.). . 5 
ment of the photophores somewhat irregular. PO6 instead of 5, 
PO: on both sides being double"). AO on left side 6 + 8, on 
right side 6 — (7), probably also here 8. Two infracaudal lu- 
minous plates, one larger and one smaller plate partly fused; 
length 1.5 mm.; a quite small luminous plate, not reaching the 
size of a photophore, is situated supracaudally where the male 
luminous plate is found normally. 
Herlofjord. One sp. 35 mm., caught 30-IV 12 with young- 
fish-trawl from abt. 200 m. depth. (Grieg 1914 p. 47). (Bg. M.). 
Mangerfjord. 
1. *Armauer Hansen” 5. VI. 19, trawl, abt. 350 m. depth. 
Four specimens. (Bg. M.). åa. 76 mm., female with ovaries well- 
developed. Infracaudal luminous plate 2 mm., consisting of two 
fused plates; a third small plate is indicated in front of them. 
b. 69 mm. Supracaudal luminous plate 3 mm.; a small infracaudal 
plate is indicated. c. 69 mm. with supracaudal luminous plate. 
AO 6 + (8), 6 + (7); there is no marked interval between 
AO ant. and AO post. d. 75 mm., supracaudal luminous plate 
3mm AO6-+ 8. 
2. "Armauer Hansen” 28-XI1-19. Trawl, abt. 300 m. depth. 
One specimen 76 mm. Supracaudal luminous plate 3 mm. AO 
probably 7+ 6. (Bg. M.). 
3. *Armauer Hansen” 6- III - 20, trawl, 350 m. depth. One 
specimen 76 mm. Two infracaudal luminous plates, 2 mm.; 
a quite small round supracaudal plate; female with well-deve- 
loped ovaries —, the large eggs measuring 0.4 mm. in diameter. 
Sognefjord. 
1. Off Balestrand. “Armauer Hansen” stat. 4, 12-V- 
17. The following appliances were towed simultaneously for 
three hours: Young-fish trawl 1600 m. wire, 1 m. net 1200 m. 
w., I m. net 600 m. w., 34 m. net 200 m. w. Depth to bottom 
1200 metres. a. Net 600 m. wire (fishing in abt. 400 m. depth), 
one specimen 52 mm.; two infracaudal luminous plates 1.5 mm. 
AO 7—6,7—5. 6b. Net 1200 m. wire (in abt. 800 m. depth), 
one specimen 56 mm. One infracaudal luminous plate, a small 
1) In the classification of the photophores I follow Brauer (1908). I 
indicate by an index at the foot the number of the photophore in the row, 
POs. thus is the fourth of the maculæ pectorales. 
