ANTARCTIC FISHES OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 279 



4. Dissostichus, Sniitt, 1898. 

 Bill. Svensk. Vet.-Almd. Hand/., xxiv., iv., No. 5, p. 1. 

 Differs from Notothenia in that the teeth are uniserial, spaced, canine-like. 

 Patagonia to Graham Land. 



DismMich us eleginoides. 

 Smitt, f.c, p. 2, pi. i. fiys. 1-1 1 ; Vaillant, ExpeiL Antarct. Francaise, Poiss., p. 36. 



Depth of body about 6 in the length, length of head 3. Diameter of eye about 

 5 in the length of head, interorbital width about 4i (? 5i). Maxillary extending to 

 below middle of eye ; upper surface of head to nostrils, cheeks and opercles scaly. 

 Dorsal IX-X, 27-28. Anal 28-30. Pectoral I the length of head. Caudal truncate 

 or slightly emarginate. Caudal peduncle much longer than deep. About 124 scales 

 in a longitudinal series ; upper lateral line extending back beyond dorsal, lower extend- 

 ing forward nearly to the pectoral. 



Total length of the type, 228 mm. 



Magellan Straits ; Graham Land. 



5. Eleginops, Gill, 18fil. 



Proc. Acad. Philad., 1861, p. 522. 



Elegmus {non Fischer), Cuv. and Val., Hist. Nat. Poiss., v. p. 158 (1830); Guntli., Cat. Fish., 

 ii. p. 247 (1860). 

 This genus differs from Notothenia in the rather small mouth, in the complete 

 absence of the lower lateral line, and in the shape of the pectoral fin. 

 Chile ; Patagonia ; Falkland Islands. 



Eleginops maclovinus. 



Eleginus maclovinus, Cuv. and Val., I.e. ; Giinth., I.e. 



chilensis, Cuv. and Val., o.c, ix. p. 480 (1833) ; Gunlh., /.-■. 

 Apliritis undulatus, Jenyiis, Zool. ''Beagle," Fish., p. 160, pi. xxix. fig. 1 ; (xunth., /.'■., p. 243. 



,, porosus, Jenyns, t.c, p. 162; Giinth., I.e. 

 Eleginus falldandicus, Richards., "Erebus" and "Terror" Fish., p. 30, pi. xx. figs. 1-3 (184.5). 



Depth of body 4^ to 5-^ in the length, length of head 3i to 4. Diameter of eye 

 5 to 8 in the length of head, interorbital width 3 to 5. Maxillary just reaching 

 vertical from anterior margin of eye in the young, but not in the adult ; occiput, mter- 

 orbital region, cheeks, and opercles scaly ; 14 or 15 gill-rakers on lower part of anterior 

 arch. Dorsal VIII-IX, 24-26. Anal 22-24. Pectoral obliquely truncated, with the 

 upper rays longest, nearly as long as head. Caudal truncate or emarginate. About 

 60 scales in a lateral longitudinal series, and 65 in the lateral line, which nearly reaches 

 the caudal fin. Body often spotted or marbled. 



Chile ; Patagonia ; Falkland Islands. 



Here described from several specimens, 120 to 450 mm. in total length. 



