32 EIN AR LÖNNBERG, (Schwed. Südpolar-Exp. 



in length of head. Snout 3/4 to s/e 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 \ 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 Nototlienia iiiizops 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. A', 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 A\ larseni is also greater * and it has a still nar- 

 rower interorbital region than the Nototheniœ from Kerguelen Land. 



For further comparison a few direct measurements are recorded below. 



Total length withouth caudal 1/8 139 "' 



Height of body 35 3^ 



5 caud.T.1 peduncle 12.S 1° 



Length ) > II lo 



> head 48 39 



Height of head at occiput 29 25 



Diameter of eye 16 13 



Length of snout 12,5 10,5 



Interorbital width 4i5 3 



Length of ventral 34 29 



The colours of the living specimen is shown on the accompanying plate (PI. 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—3?; A- 33—35 a»d iu A^- <"«''' ^ ^^- 3°: A. 32. 

 according to Boulenger (Fishes of the "Southern Cross" Exp.l. 



