NOTOTHENIIDAE 



35 



33-36. Pectoral with 27 to 29 rays, f to | length of head, longer than pelvics, which 

 just reach the vent in young but not in adult. Caudal subtruncate; caudal peduncle 

 about as long as deep. Brownish, with large dark spots or cross-bars; head often 

 spotted; spinous dorsal blackish; other fins usually barred with series of dark spots. 



Fig. 19. Trematomus hansoni. x |. 



Hab. Graham Land and neighbouring islands; South Shetlands; South Orkneys; 

 South Georgia ; Coats Land ; Wilhelm Land ; Queen Mary Land ; South Victoria Land. 



The types of the species, 160 to 280 mm. in total length, are from Cape Adare, 8 to 

 16 metres, and from Duke of York Island, near Cape Adare, 6 to 8 metres. Regan has 

 shown that Lonnberg's supposed subspecies from South Georgia is fully identical with 

 the typical form. The specimen of 137 mm. from Booth Wandel Island (Paris Museum, 

 No. 06 — 99), recorded by Vaillant as Notothenia sima, appears to belong here. 



Trematomus loennbergii, Regan. 



Notothetiia nicolai {non Boulenger), Lonnberg, 1905, Wiss. Ergebn. Schwed. Siidpol.-Exped., v 



(6), p. 45. 

 Notothenia longipes (part), Boulenger, 1907, Nat. Atitarct. Exped. Nat. Hist., n, Fish., p. i. 

 Trematomus loennbergii, Regan, 1913, t.c, p. 263, pi. viii, fig. 4; 1914, Rep. Brit. Antarct. 



(' Terra Nova') Exped., 1910, Zool. i (i), p. 3; Waite, 1916, Austral. Antarct. Exped. Set. 



Rep., Ser. C, in (i). Fishes, p. 20. 



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

 eye, diameter of which is 3 to 3 1 in length of head; interorbital width 6 to 10. Jaws 

 about equal anteriorly; maxillary extending to below anterior ^ or | of eye; upper 

 surface of head to nostrils, cheeks and opercles scaly; 10 to 13 gill-rakers on lower 

 part of anterior arch. Scales on body more or less ctenoid ; 60 to 75 in a longitudinal 

 series from above base of pectoral to caudal ; 34 to 46 in upper lateral line ; lower lateral 

 line, when developed, with 10 to 15 tubular scales. Dorsal V-VII, 31-35. Anal 31-35. 

 Pectoral with 28 or 29 rays, nearly as long as head, longer than pelvics, which reach 

 vent or origin of anal. Caudal rounded or subtruncate; caudal peduncle as long as or 

 longer than deep. Brownish, with irregular darker cross-bars; inside of mouth and 

 branchial cavities blackish ; sometimes an indistinct dark blotch on spinous dorsal. 



