4 “TERRA NOVA” EXPEDITION. 
7. Trematomus pennellii, Regan (Pl. 11, fig. 2). 
Trematomus pennellii, Regan, Ann. Mag. Nat. Hist. (8) xm, 1914, p. 12. 
Depth of body 43 to 5 in the length, length of head 33 to 33. Diameter of eye 
34 to 33 in length of head, interorbital width 8 to 10. Maxillary extending to below 
anterior +.of eye; occiput, interorbital region, cheeks and opercles scaly. 13 to 16 
gill-rakers on lower part of anterior arch. Dorsal v—v1, 32-34; spines flexible. Anal 
30. Pectoral 3 or + length of head; pelvics extending to origin of anal. Caudal 
subtruneate. Caudal peduncle as long as deep. 52 to 56 scales in a longitudinal series 
from above base of pectoral fin to caudal, 32 to 36 in upper lateral line; lower lateral 
line without tubules. Olivaceous, with two or three series of large dark spots which 
may unite to form irregular cross-bars. 
Off Cape Adare; 45 to 50 fathoms; bottom shingle. Five specimens, 100 to 140 
mm. in total length. 
This species is named after Commander H. L. L. Pennell, r.. 
8. Trematomus centronotus, Regan (PI. mt, fig. 1). 
Trematomus centronotus, Regan, Ann, Mag. Nat. Hist. (8), x11, 1914, p. 12. 
Depth of body 4 in the length, length of head 34 to 33. Diameter of eye 34 in 
the length of head, interorbital width 10. Maxillary extending to below anterior + or 
! of eye; occiput, interorbital region, cheeks and opercles scaly. 14 gill-rakers on lower 
part of anterior arch. Dorsal v—v1, 32-35; spines stiff, pungent. Anal 29-32. 
Pectoral 2 or % length of head; pelvics extending to origin of anal. Caudal peduncle 
as long as deep. 52 to 56 scales in a longitudinal series from above base of pectoral 
fin to caudal, 30 to 36 in upper lateral line; lower lateral line without tubules. Large 
dark spots uniting to form irregular cross-bars. 
Two specimens, 175 and 210 mm. in total length, from MeMurdo Sound, 100 to 
200 fathoms. 
The pungent dorsal spines distinguish this species from all others of the genus, but 
it so closely resembles 7. pennellii in other characters, scarcely differing except in the 
larger eye, that it is undesirable to place it in another genus. 
9. Trematomus seotti, Bouleng. (PI. rv, fig. 2). 
Notothenia scotti, Bouleng. Nat. Antarct. Exped. Nat. Hist. 1, Fish, p. 2, pl. 1, f. 1 (1907); 
Regan, Trans. R. Soc. Edinb. xtrx, 1913, p. 271. 
Depth of body 4 to 55 in the length, length of head 3 to 33. Diameter of eye 
2% to 34 in length of head, interorbital width about 12. Maxillary extending to below 
anterior 4 of eye; occiput, interorbital region, praeorbitals, cheeks and opercles scaly. 
10 to 13 gill-rakers on lower part of anterior arch. Dorsal tv—vi, 31-34. Anal 
29-32. Pectoral $ to # length of head; pelvies reaching vent or anal fin. Caudal 
rounded. Caudal peduncle about as long as deep. 46 to 54 scales in a longitudinal 
series from above base of pectoral fin to caudal, 11 to 23 in upper lateral line; lower 
