32 
EINAR LÖNNBERG, 
(Schwed. Stidpolar-Exp. 
in length of head. Snout 3 / 4 to 5 /<> of diameter of eye. Maxillary not reaching 
further than below anterior sixth, or at most fifth, of the eye. Lower lip slightly 
projecting beyond upper. Head entirely scaly, even the snout and preorbital to the 
lips, and the mandible. No enlarged teeth. Pectoral a little shorter than head. 
Ventrals just reaching anal, 3 / 4 length of head. Caudal rounded. Upper lateral line 
very conspicuous with 55 — 56 tubular openings, lower lateral line almost obsolete, 
represented by a series of pits which is not continuous. 5 or 6 scales between the 
lateral line and the first dorsal. Depth of caudal peduncle equal to or only little 
greater than its length. Three dark transverse bands on the postanal portion of the 
body. Small black dots on the dorsal form here and there irregular, oblique bands. 
This fish is no doubt related to Noiothenia mizops GÜNTHER and N. acuta 
GÜNTHER, both originally found at Kerguelen Land, it is, however, very easily dis- 
tinguished from both by the different distribution of scales on the head. N. mizops 
and acuta have no scales on snout and preorbital, which parts in N. larseni are 
completely covered by comparatively large and well developed scales. The number 
of rays in dorsal and anal fins of N. larseni is also greater * and it has a still nar- 
rower interorbital region than the Notothenice from Kerguelen Land. 
For further comparison a few direct measurements are recorded below. 
Total length withouth caudal 
Height of body 
» » caudal peduncle . 
Length » » » . 
» » head 
Height of head at occiput . 
Diameter of eye 
Length of snout 
Interorbital width 
Length of ventral 
178 
139 mm. 
35 
32 » 
12,5 
10 » 
1 1 
10 » 
48 
39 » 
29 
25 » 
16 
13 * 
12,5 
10.5 » 
4 i 5 
3 » 
34 
29 > 
The colours of the living specimen is shown on the accompanying plate (PL I 
fig. 3) which is reproduced after the original painting by Dr. C. SKOTTSBERG from 
a living specimen from Cumberland Bay. 
In quite young specimens (measuring to 6 cm.) the interorbital is compara- 
tively not quite so narrow, which is a juvenile characteristic. It is contained 
only 8 or 9 times in the length of head. The ventrals are nearly as long as the 
head. The other relative dimensions are, however, the same as in the adult. When 
the young specimens are considered it appears probable that this species has some 
affinity to N. longipes from which it, however, even in this stage is easily distin- 
* In N. mizops the formula is D. IV — V, 35 — 37; A. 33 — 35 and in At. acuta D. VI, 30; A. 32, 
according to Boulenger (Fishes of the ”Southern Cross” Exp.). 
