40 EINAR LÖNNBERG, (Schwed. Südpolar-Exp. 



II. Artedidraco mirus n. g. & sp. 



(PI. I Fig. 4 & ri. IV Fig. 14.) 



1 specimen from stat. 20, Antarctic Bay (just outside the glacier). South Geor- 

 gia, depth 250 m., small stones. 6th of May 1902. 



2 specimens from stat. 22, Cumberland Bay, South Georgia, depth 75 m., clay 

 and some algae, temperature + 1,5' C. 12th of May 1902. 



I specimen from stat. 33, Boiler Harbour, Cumberland Bay, South Georgia, 

 depth 22 m., clay and algae. 30th of May 1902. 



D. Ill, 23—24. A. 17. 



Head broad, depressed, body compressed. Depth of body (at ventrals) not 

 quite 4 times in total length without caudal in adult specimens, 4^/4 times in young. 

 Length of head about 2V5 to 2V3 times in total length without caudal. Interorbital 

 width 8 to 8V4 times, in adult J'ii to 8 times in length of head. Diameter of eye 

 nearly 4 times in adult, yU to 3'/3 times in young, in length of head. Snout and 

 eye subequal in adult, the former a little shorter in young. Lower jaw a little pro- 

 jecting, more in young than in adult. Distance from snout to vent 5/4 (125 — 130%) 

 of distance from vent to root of caudal fin. Depth of caudal peduncle contained 

 about 4 times in length of head. Length of caudal fin about ^/s of length of head 

 in adult, nearly s/e of the same in young. Pectoral rounded about ^'3 of length of 

 head. Ventrals a little less than '/^ length of head in adult male, a little more than 

 ','2 length of head in adult female, 3/5 of the same in young male, a little more than 

 that in young female. First dorsal very narrow, in young specimens ^U (cf) or 

 '/s (9) of total length without caudal, in adult broader and shorter, ',6 (o^) to hardly 

 more than '/s (Ç) of total length without caudal, in the last case hardly more than 

 reaching second dorsal, in the first overlapping the same widely. 



Barbel simple and bluntly pointed in females, not much more than '4 of length 

 of head; with a club-shaped end covered with small papillae and equal to ■,3 of 

 length of head in males. The barbel is subequal to or usually longer than diameter 

 of eye. 



Some measurements of the four specimens obtained are recorded below: 



Total length without caudal 40 111111. 44 mm. 85 mm. 92 mm. 



Length of head 15 » 17.5 > 32 > 35 » 



Interorbital width 2 > 2,s > 4 » 4 » 



Diameter of eye 4'S ' 5 ' 8 ■ 9 ' 



Length of snout 4 > 4,5 ' 8 » 9^s ' 



Length of pectoral 11 » II » 20 > 21 > 



Length of ventral 9 > 11 ' 17 > 16 > 



