NOTOTHENIIDAE 39 



3 to 3 § in length of head; interorbital width about 6. Mouth nearly horizontal; jaws 



about equal anteriorly; maxillary extending to below anterior edge of pupil; upper 



surface and sides of head, including snout and praeorbital, scaly; 14 to 16 gill-rakers on 



lower part of anterior arch. Scales on body ctenoid ; 72 to 80 in a longitudinal series 



from above base of pectoral to caudal ; 43 to 56 in upper lateral Une, which ends behind 



dorsal or below its posterior rays; 26 to 38 in lower lateral hne. Dorsal VI-VII, 31-33. 



Anal 34-36. Pectoral with 27 to 29 rays, as long as or nearly as long as head, longer 



than pelvics, which reach vent or anterior 



rays of anal. Caudal rounded or sub- (^ /^v^^^^ 



truncate; caudal peduncle somewhat •-<''"'-^^^^-^^^^^^^ 



deeper than long. Brownish, with ir- ^:^ \ ^^^^^^ .V.V.::: )^^3 



regular and somewhat indistinct darker ^"^~— =^^^J^fc^^^j^^ssv^^^^^^ ^^^5=5=^ 



cross-bars; spinous dorsal blackish; soft ^^^ 



dorsal with dark oblique stripes. The 



,, , , , _. Fie. 23. Trematomus lepidorhinus. x 1. 



specimen collected by the Discovery 



Committee has the inside of the mouth and the branchial cavities blackish. 



Hab. Mac-Robertson Land ; Wilhelm Land ; South Victoria Land. 



The types, up to 240 mm. in total length, were taken at the Winter Quarters of the 

 'Gauss', at a depth of 385 metres. There are 3 specimens, 135 to 150mm. in total 

 length, in the British Museum collection, taken by the 'Terra Nova' from off new land 

 south of the Balleny Islands at a depth of 375 metres. 



Trematomus eulepidotus, Regan. 



Trematomus eulepidotus, Regan, 1914, Ann. Mag. Nat. Hist., (8) xni, p. 12; 1914, Rep. Brit. 

 Antarct. (' Terra Nova') Exped., 1910, Zool. i (i), p. 5, pi. iv, fig. 3 ; Waite, 191 6, Austral. 

 Antarct. Exped. Sci. Rep., Sen C, in (i). Fishes, p. 22; Norman, 1937, t.c, p. 71. 



St. 167. 20. ii. 27. Off Signy Island, South Orkneys. Net (7 mm. mesh) attached to back of 

 trawl, 244-344 "!•• 4 specimens, 90-190 mm. 



St. 181. 12. iii. 27. Schollaert Channel, Palmer Archipelago. Large otter trawl, 160-335 m.: 

 I specimen, 163 mm. 



St. 1660. 27. i. 36. 74° 46-4' S, 178° 23-4' E. Large otter trawl, 351 m.: i specimen, 255 mm. 



Depth of body 3I to 4I in the length, length of head 3^ to 3f. Vent nearly equi- 

 distant from tip of snout and end of anal fin. Snout shorter than eye, diameter of 

 which is 2,1 to 3I in length of head; interorbital width 4I to 5 J. Mouth oblique; jaws 

 about equal anteriorly ; maxillary extending to below anterior \ of eye ; head covered 

 with scales, only the lips naked; 12 to 15 gill-rakers on lower part of anterior arch. 

 Scales on body ctenoid ; 67 to 76 in a longitudinal series from above base of pectoral 

 to caudal ; 40 to 48 in upper lateral line, which generally ends below posterior rays of 

 dorsal; 10 to 22 in lower lateral line. Dorsal VI-VII, 34-37. Anal 32-34. Pectoral 

 with 27 or 28 rays, | to | length of head, longer than pelvics, which reach vent or origin 

 of anal. Caudal subtruncate; caudal peduncle as long as or nearly as long as deep. 

 Pale brownish; sides of body with dark spots connected to form a network; spinous 

 dorsal more or less dusky or blackish distally ; soft dorsal with oblique dark stripes. 



