NOTOTHENIIDAE 91 



lateral line, which ends below last ray of dorsal, 12 in lower lateral line. Dorsal V 

 (VI) 29; longest spine less than | length of head. Anal 24; length of base z\ in that 

 of fish (without caudal). Pectoral nearly f length of head, a little longer than pelvics, 

 which extend nearly f of the distance from their base to the vent. Caudal rounded ; 

 caudal peduncle deeper than long. Brownish above, with traces of darker markings, 

 paler beneath; sides of head reticulated; fins more or less spotted. 



Hob. East coast of Patagonia; Straits of Magellan; New Zealand; Auckland Island; 

 Campbell Island. 



The above description is based upon a paratype of Notothenia patagonica, 270 mm. 

 in total length, presented to the British Museum by Mr E. J. MacDonagh. Comparison 

 of this specimen with authentic examples of N. microlepidota from New Zealand reveals 

 no important differences, and I have no doubt that the two species are synonymous. 

 N. latifrons was described from 3 young specimens from Sandy Point and Laredo Bay, 

 the holotype being 63 mm. in total length (U.S.N.M. No. 76854), and is almost certainly 

 identical with the New Zealand species, as was suggested by Regan (1916, Ann. Mag. 

 Nat. Hist., Ser. 8, xvm, p. 379). There is, thus, a second species common to the 

 Patagonian and Antipodes regions. In 4 examples from the Antipodes the number of 

 gill-rakers on the lower part of the anterior arch varies from 11 to 13. 



Genus Dissostichus, Smitt 



Dissostichus, Smitt, 1898, Bih. Sv. Vet.-Akad. Handl, xxiv, iv, No. 5, p. 3. Type D. eleginoides, 

 Smitt. 

 This genus is closely related to Notothenia, but differs in the form of the dentition 

 and in the longer snout. It may also be distinguished from nearly all the species of 

 Notothenia by the smaller scales and by the very long lower lateral line. 



Dissostichus eleginoides, Smitt. 



1898, t.c, p. 4, pi. i, figs. 1-11; Delfin, 1901, Cat. Peces Chile, p. 83; Vaillant, 1907, Exped. 

 Antarct. Franf., Poiss., p. 36; Regan, 1913, Trans. R. Soc. Edinb., xlix, p. 279; Devincenzi, 

 1924, Anal. Mus. Montevideo (11) 1 (5), p. 264. 

 St. WS75. 10. iii. 27. 5i°oi'3o"S, 6o°3i'W. Commercial otter trawl, 72 m.: 1 specimen, 



130 mm. 

 St. WS 97. 1 8. iv. 27. 49 00' 30" S, 6i° 58' W. Commercial otter trawl, 146-145 m.: 1 specimen, 



330 mm. 



St. WS98. 18. iv. 27. 49 54' 15" S, 60' 35' 30" W. Commercial otter trawl, 173-171 m.: 



2 specimens, 295, 320 mm. 



St. WS245. 18. vii. 28. 52 36' S, 63 40' W. Commercial otter trawl, 304-290 m. : 2 specimens, 



445, 900 mm. 



St.WS839. 5.U.32. 53 30' 15" S, 63 29' W. Commercial otter trawl, 403-434 m. : 2 specimens, 



630, 640 mm. 



Depth of body \% to more than 6 in the length, length of head 2 J to 3. Snout 



if times to nearly twice as long as eye, diameter of which is 5^ to d\ in length of head ; 



interorbital width \\ to 5. Lower jaw strongly projecting ; maxillary extending to below 



middle or posterior part of eye; teeth biserial in upper jaw, those of the outer row 



