70 



St. WS 835. 

 50-130 mm. 



St. WS 836. 

 160 mm. 



St. WS 847. 

 200 mm. 



DISCOVERY REPORTS 



2. ii. 32. 53° 05' 30" S, 68° 06' 30" W. Small beam trawl, 14-16 m.: 44 specimens, 



3. ii. 32. 53 05' 30" S, 67 38' W. Small beam trawl, 64 m.: 4 specimens, 132- 

 9. ii. 32. 50 15' 45" S, 67 57' W. Commercial otter trawl, 51-56 m.: 1 specimen, 



Depth of body 5 to 6 in the length, length of head 3^ (young) to 3§ . Snout (except 

 in young) as long as or a little longer than eye, diameter of which is 4 (young) to 5§ in 

 length of head; interorbital width 5 to 5^. Lower jaw strongly projecting; maxillary 

 extending to or nearly to below middle of eye ; teeth irregularly bi- or triserial in upper 

 jaw, uniserial in lower, those of outer series of upper jaw and most of those in lower 

 jaw enlarged, spaced and canine-like ; upper surface of head (except snout and prae- 

 orbital), cheeks and opercles covered with smooth scales ; about 9 rows of scales between 

 the eyes; 14 to 16 gill-rakers on lower part of anterior arch. Scales on body smooth; 



Fig- 3i- 



Notothenia canina. x \. 



78 to 84 in a lateral longitudinal series; 60 to 65 tubular scales in upper lateral line, 

 which extends to midway between last ray of dorsal and caudal, 6 to 9 in lower lateral 

 line. Dorsal VI 30-34; third spine generally longest, not more than \ length of head. 

 Anal 30-32. Pectoral about | the length of head; pelvics shorter, not reaching vent. 

 Caudal rounded ; caudal peduncle as deep as long or a little deeper than long. Pale 

 brownish, with a lateral series of about 7 dark blotches or irregular cross-bars ; spinous 

 dorsal with a dark blotch ; soft dorsal often with small spots arranged in rows ; caudal 

 with a narrow pale hinder margin. 



Hab. Patagonian-Falkland region ; Straits of Magellan. 



This species, which was previously unrepresented in the British Museum collection, 

 differs from almost all other species of the genus in the form and arrangement of the 

 teeth, and in this respect it approaches Dissostichus. Steindachner's specimens from 

 Tierra del Fuego, identified by him as N. acuta, Giinther, clearly belonged to this 

 species. Thompson has identified them as N. tessellata, but has overlooked Stein- 

 dachner's description of the projecting lower jaw, large mouth cleft, unequal teeth, and 

 the presence of 57 to 59 tubular scales in the upper lateral line. The types of the species, 

 90, 120 and 138 mm. in total length, were all from Puerto Gallegos, on the east coast 

 of Patagonia, at a depth of 3 to 5 metres. 



