NOTOTHENIIDAE 37 



Depth of body 4 to 5 in the length, length of head 3! to 3! . Snout shorter than eye, 

 diameter of which is af (young) to 3I in length of head; interorbital width 10 to 12. 

 Jaws equal anteriorly; maxillary extending to below anterior I or 3 of eye; occiput, 

 interorbital region, cheeks and opercles scaly; 13 to 15 gill-rakers on lower part of 

 anterior arch. Scales on body cycloid or rather feebly ctenoid ; 52 to 56 in a longitudinal 

 series from above base of pectoral to caudal ; 30 to 39 in upper lateral line, which ends 

 below posterior part of dorsal; lower lateral line without tubular scales. Dorsal V-VI, 

 32-36; spines stiff, pungent. Anal 29-32. Pectoral with 24 or 25 rays, f to | length 

 of head, a little shorter than pelvics, which extend to origin of anal. Caudal apparently 

 subtruncate ; caudal peduncle about as long as deep. Brownish, with large dark spots, 

 uniting to form irregular cross-bars ; a black spot on distal part of spinous dorsal. 



Fig. 21. Lateral view of head of A, Trematomus pennellii; B, T. centronotus. x \. 



Hab. Mac-Robertson Land; Queen Mary Land; Adelie Land; South Victoria 

 Land. 



The types of this species, 2 specimens 175 and 210 mm. in total length, are from 

 McMurdo Sound, 187 to 375 metres. It is very like T. pennellii, and, apart from the 

 stiff and pungent dorsal spines, it scarcely differs from that species except in the larger 

 eye. T. centronotus appears to be found in rather deeper water than T. pennellii. 



Trematomus scotti (Boulenger). 



Notothenia scotti, Boulenger, 1907, Nat. Antarct. Exped. Nat. Hist., 11, Fish., p. 2, pi. i, fig. i; 



Roule, Angel and Despax, 1913, Deu.v. Exped. Antarct. Fratif. (1908-1910), Poiss., p. 5; 



Regan, 1913, Trans. R. Soc. Edinburgh, xlix, p. 271. 

 Trematomus scotti, Regan, 1914, Rep. Brit. Antarct. {'Terra Nova') Exped., 1910, Zool. i (i), 



p. 4, pi. iv, fig. 2; Waite, 1916, Austral. Antarct. Exped. Sci. Rep., Ser. C, in (i), Fishes, 



p. 21 ; Norman, 1937, t.c, p. 70. 



St. 181. 12. iii. 27. Schollaert Channel, Palmer Archipelago. Nets (4 mm. and 7 mm. mesh) 

 attached to back of trawl, 160-235 "i-- 6 specimens, 95-145 mm. 



St. 187. 18. iii. 27. Neumayr Channel, Palmer Archipelago. Large dredge, 259 m.: i specimen, 

 145 mm. 



St. 190. 24. iii. 27. Bismarck Strait, Palmer Archipelago. Large dredge, 315 m. : i specimen, 

 68 mm. 



St. 599. 17. i. 31. 67° 08' S, 69° o6-|' W. Large dredge, 203 m.: 3 specimens, 70-125 mm. 



St. 1652. 23. i. 26. 75' 56-2' S, 178° 35-5' E. Rectangular dredge, with Russell net, 567 m.: 

 I specimen, 130 mm. 



St. 1660. 27. i. 36. 74° 46-4' S, 178° 23-4' E. Large otter trawl, 351m.: 11 specimens, 61- 

 145 mm. 



