64 
EINAR LÖNNBERG, 
(Schwed. Südpolar-Exp. 
6. Myctophum (Lampanyctus) braueri n. sp. 
Fig. i p. 61. 
i specimen caught in a net drawn from a depth of 2,700 m. to the surface, 
49 0 56' S. lat., 49° 56' W. long. 27th of June 1902. 
D. 15. A. 18. 
Body rather slender, depth of body about 7 times in total length without cau- 
dal. Head large, only y/ a times in total length. Diameter of eye about 4V2 times 
in length of head. Snout damaged, a little shorter than diameter of eye. Mouth 
wide extending far beyond posterior margin of eye. Origin of dorsal somewhat 
behind base of ventrals. Ventrals reaching beyond origin of anal. Posterior end 
of anal opposite to the adipose fin. 
Fig. I. 
As the specimen is somewhat damaged it is difficult in some cases to state the 
exact position of the luminous organs. The following statements may, however, be 
correct: An antorbital, three branchiostegal, and four opercular luminous organs, as 
usual. A large gap between the first and the four following PO. The two PVO. 
vertically above each other, below the base of the pectoral. The PLO. above and 
in front of the same, not far from the lateral line. Six VO. in a series. The most 
posterior of these is, however, the lowest SAO., as the two others of this group sit 
in a vertical row above the same. A VLO. sits straight above the base of the 
ventral but somewhat nearer the lateral line than the ventral. The foremost AO. 
is pushed somewhat upwards from the otherwise continuous series consisting of nine 
more AO. along the base of the anal fin. At the posterior end of this series two 
Pol. form a diagonal series upwards and backwards from the last of the nine AO. 
Behind a gap seven more AO. form a series along the lower margin of the caudal 
peduncle and then after a gap three Per. sit in a ventral series. Where the fourth 
Per. has been situated cannot be decided as it is lost on both sides. 
To judge from Brauer’s descriptions this new species may be most nearly re- 
lated to M. ( Lampanyctus ) maderense (Lowe) and warmingi LüTKEN. M. braueri 
