ANTARCTIC FISHKS OF THE SCOTTISH NATTONAl. ANTARCTIC EXPEDITION. 261 



(4) Trematomtis hrachysoma. 



Pappenlipim, Deutsche Siiilpohir-ExpeiL, xiii., ZooL, v. p. 172 (1912). 



Depth of body 4rV to 4 J- in the length, length of head 3 to 3g. Diameter of eye 

 3f to 3f in the length of head, interorbital width 4 to 5.^. Maxillary extending to 

 below anterior part or middle of eye ; upper surface of head naked ; upper parts of 

 cheeks and opercles scaly ; 16 to 19 gill-rakers on lower part of anterior arch. Dor.sal 

 IV-V, 30-33. Anal 26-30. Caudal rounded. Caudal peduncle a little deeper than 

 long. 65 to 75 scales in a longitudinal series. Yellowish brown ; head and back dark ; 

 a series of 6 dark spots from operculum to caudal, and 5 below them at level of base of 

 pectoral; a dark spot at tip of spinous dorsal ; soft dor.sal with irregular dark cross-bars. 



Wilhelm Land. 



Total length 93 to 1G6 mm. 



(5) Trematomus vicarius. 



Trematomus hernacchii subsp. vicarius, Ldnnberg, Swedish Soutli. Polar Exped., Fish.., p. 26 (1905). 

 ] Notothenia duhia, Lonnberg, i.e., p. 28, pi. iii. fig. 9. 



Depth of body 3| in the length, length of head 3^. Diameter of eye 4-| in length 

 of head, interorbital width about 5. Maxillary extending to below anterior ^ of eye ; 



Fig. 6.— Head .seen from above of A, Treimtlomus heniacchii, iincl B, T. vicari 



cheeks, opercles, and occiput .scaly ; anterior part of interorbital region scaly in the 

 middle; about 12 gill-rakers on lower part of anterior arch. Dorsal V, 33. Anal 31. 

 Pectorals f, pelvics -|- the length of head. Caudal rounded. Caudal peduncle much 

 deeper than long. 56 to 59 scales in a longitudinal series, 34 in upper lateral line ; 

 lower lateral line without tubules. 



South Georgia. 



Lonnberg's description is based on a single specimen, 240 mm. in length to base of 

 caudal fin. 



Dr Lonnberg has kindly sent me a sketch of the upper surface of the head of the 

 type, which is here reproduced, together with a figure of the head of a specimen of 



TRANS. ROY. SOC. EDIN., VOL. Ji;LIX. PART II. (NO. 2). 34 



