. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 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 t
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 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 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, 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. Sc
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