NOTOTHENIIDAE 69 



what larger eye, larger scales in the interorbital region, fewer gill-rakers, rather fewer 

 dorsal and anal rays, and a much shorter lower lateral line. 



Notothenia trigramma, Regan. 



Notothenia trigramma, Regan, 1913, Trans. R. Soc. Edinb., xlix, p. 266, pi. vi, fig. 2; Thompson, 

 1916, Proc. U.S. Nat. Mus., L, p. 451. 



Depth of body 5 in the length, length of head 4. Snout about as long as eye, diameter 

 of which is 5 in length of head and equal to the interorbital width. Lower jaw projecting ; 

 maxillary extending to below anterior g of eye ; teeth in 3 to 5 rows anteriorly, those of 

 the outer series enlarged but not canine-like ; upper surface of head (except snout and 

 praeorbital), cheeks and opercles covered with smooth scales; 9 or 10 rows of scales 

 between the eyes ; 1 5 gill-rakers on lower part of anterior arch. Scales on body ctenoid ; 

 about 85 in a lateral longitudinal series; 65 in upper lateral line, which nearly reaches 

 caudal, 13 in line on middle of tail, and 40 to 45 in a third lower lateral line, which is 

 separated by 4 or 5 longitudinal series of scales from the base of the anal fin. Dorsal 

 VI 34 ; third spine longest, about J length of head. Anal 32. Pectoral about § the length 

 of head, longer than pelvics, which do not reach vent. Caudal rounded ; caudal peduncle 

 about f as long as deep, its least depth about | length of head. Brownish; fins darker; 

 a dark blotch on posterior part of spinous dorsal. 



Hab. Falkland Islands. 



Known only from the unique holotype, 280 mm. in total length, from Port Stanley, 

 preserved in the Royal Scottish Museum, Edinburgh (Bruce Collection). 1 Quite apart 

 from the presence of a third lateral line, this fish does not agree with any known species 

 of Notothenia. It is most like N. wiltoni, which also occurs at the Falklands, but that 

 species has only 48 to 53 scales in the upper lateral line, the lower jaw only a little 

 longer than the upper, the head larger, and the interorbital region narrower. 



Notothenia canina, Smitt. 



Notothenia tessellata forma canina, Smitt, 1897, Bih. Sv. Vet.-Akad. Handl, xxni, iv, No. 3, 



p. 25, pi. i, figs. 10, 11, pi. ii, figs. 20-22. 

 Notothenia acuta {non Giinther), Steindachner, 1898, Zool. Jahrb., Suppl. iv, p. 303; Delfin, 



1 90 1, Cat. Peces Chile, p. 86. 

 Notothenia canina, Boulenger, 1902, 'Southern Cross', Pisces, p. 183; Regan, 1913, Trans. R. Soc. 

 Edinb., xlix, p. 267; Hussakof, 1914, Bull. Amer. Mus. Nat. Hist., xxxm, p. 90; Thompson, 

 1916, Proc. U.S. Nat. Mus., l, p. 455. 

 St. WS 89. 7. iv. 26. 9 miles N 21 ° E of Arenas Point Light, Tierra del Fuego. Commercial 

 otter trawl, 23-21 m.: 2 specimens, 65, 138 mm. 



St. WS 812. 10. i. 32. 51 16' 15" S, 68° 52' W. Net (7 mm. mesh) attached to back of trawl, 

 53-55 m.: 7 specimens, 68-115 mm. 



St. WS 833. 1. ii. 32. 52 30' S, 68° 00' W. Nets (4 and 7 mm. mesh) and seine net attached to 

 back of trawl, 38-31 m.: 18 specimens, 85-135 mm. 



St. WS 834. 2. ii. 32. 52 57' 45" S, 68° 08' 15" W. Net attached to back of trawl, 27-38 m.: 

 8 specimens, 90-160 mm. 



1 I am indebted to the authorities of the museum for the loan of this specimen for re-examination. 



