Bd. V: 6) THE FISHES OF THE SWEDISH SOUTH POLAR EXPEDITION. 25 



with the much more distant eastern districts, Marion Island and Kerguelen Land 

 (one species in common with either) than with the nearer situated western districts, 

 Falklands and Tierra del Fuego (no species in common). But with the true Ant- 

 arctic region the relationship is closest (four species in common). The latter fact is 

 still more confirmed by the fact that the just discovered genus Artedidraco has one 

 species at South Georgia, the other in the true Antarctic. 



I. Trematomus hansoni BOULENGER n. subsp. georgianus. 



(PI. V. Fig. 17.) 



5 specimens caught on long-lines in a depth of 78 to 92 m. outside Boiler 

 Harbour, Cumberland Bay, South Georgia the 22d May 1902. 



3 specimens caught on long-lines in a depth of 100 m., clayey bottom, Cumber- 

 land Bay, South Georgia the 20th May 1902. 



D. (V*) VI, 36-38. A. (31) 32-33. Sq. 65-70. 



Depth of body 4 to 5 times in total length including caudal, 33/4 to 4V2 times 

 without caudal. Length of head 3V2 to 2^/3 times in total length without caudal. 

 Thickness of head at preopercles 5/^ of length of head. Diameter of eye not quite 

 equal to length of snout, 4 to 4'/2 times in length of head. Interorbital width 6^lz 

 times (in the smallest) to 5 times in length of head. Maxillary extending to below 

 centre of eye, in the smallest, only to the vertical through the anterior margin of 

 the pupil. Lower jaw not projecting beyond upper. Cheeks, opercle, occiput and 

 interorbital region to between the nostrils densely covered with rather large scales. 

 About 15 — 16 rather short gill-rakers on lower part of anterior arch. Pectoral long, 

 almost square-cut posteriorly, but with the lower portion somewhat rounded, only a 

 little shorter than head and reaching beyond origin of anal. Ventral 'I3 length of 

 head. Caudal truncate. Caudal peduncle deeper than long, its depth about 22/4 

 times in length of head. Upper lateral line 39 — 46 with well developed tubules, 

 lower lateral line only represented by a series of pits which, however, nearly reach 

 the hind margin of the pectoral. 



The colour is said, on the label to have been of an undefined grey above, white 

 below, but without spots or other markings. The smallest specimen is about 24 cm., 

 the others about equal inter se 31 — n cm. Peritoneum black. All specimens fe- 

 males, but the ovaries were not ripe. 



It is quite evident that these fishes from South Georgia are closel}' allied to the 

 species, which BoULENGER has described under the name T. hansoni among the 

 collections of the "Southern Cross" expedition from Victoria Land, but, on the 

 other hand, certain differences from the same make themselves known in all the 



* in I specimen. 



