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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



Upper lateral line ending under third from last dorsal ray and 

 failing to reach beginning of lower lateral line by seven or eight 

 scales, although latter is continued by slightly pitted scales as far 

 forward as pectorals, in same inconspicuous fashion as in other 

 NototJienia. 



Scales roughly ctenoid; present on head, except on snout, pre- 

 opercular limbs, preorbitals, and jaws; extending as far forward as 

 anterior border of eyes on interorbital and as far as end of maxillary 

 on cheeks; scales on interorbital as large as those on flanks and 

 opercle, those on cheeks and space between dorsal and occiput 

 smaller; space between and before ventrals scaled. 



Color uniform; spinous dorsal dark; soft dorsal with indistinct 

 white stripes obliquely placed on a dark ground; anal similar, both 

 anal and dorsal with last rays white or clear in a conspicuous way; 

 caudal uniform, slightly dusky, as are pectorals and ventrals. 



The large scales on the forehead, the somewhat compressed head, 

 much compressed body, and clear (or white) last rays in the soft 

 dorsal and anal clearly differentiate this species from all others. 



The brief original description of the species offers but little secure 

 ground for the determination of its relationships, and there may be 

 room for doulDt concerning the present identification. Peters' species 

 was at all events not the same as Notothenia sima, to which it has been 

 referred by recent authors, as it differs from that species in numerous 

 details. It has one more spine than is found in N. sima, a greater 

 depth, shorter head, and different coloration. The present species 

 seems to have a different coloration than that described by Peters, 

 and the scales extend to the anterior edge of the eye instead of to the 

 middle. It is not at aU closely comparable to Notothenia tessellata, 

 to which he compared his specimens.* 



The recording of this species from Mayne Harbor extends the 

 range of this species from Sandy Point (Punta Arenas) to Hanover 

 Island on the western coast. 



Table of measurements'^ and counts of Notothenia squamiceps Peters. 



1 The following is the original description of Notothenia squamiceps Peters: 



"D. 7-28: A. 30; Lin. Lat. 51; tr. 3/13. 



" Korpcrhohe zur Totalliinge wie 1 :4i. Der Kopf, dessen Lango die Korperhohe kaum iibertriflt, hat die 

 Backen der Kiemendeckel uiid die Interorbitalgegend bis vor die Mitto beschuppt. 



" Hellbraun. Brustllosscn gelblick. Bauchflossen in der Mil to der Oberseite schwarz. Die Senkrechten 

 Flossen schwarz gelleekt und gebllndcrl, auf diT vorderon lliilfte dor Analflosso etwas uuregelmiissige 

 schwarz Liingsbinden. auf der'Schwanzflosso schwarze Querbinden. 



" Dieser Art stimmt duroh die Bosohnpjiung dos Kopfes am moisten mil N. tessellata Richard.son iiberein, 

 bei welcho abcr dieselbo vorn noch iiber die Augen hinausragt , und welche ausserdem viel kleinere Schup- 

 pen, 66 bis 70 in der Seitenlinie und eine andere Flosscnstrahl hat." 



' Measurements in hundredths of length to base of caudal. 



3 Localilias: Mayne Harbor, Patagonia, 01-60, 01-61, 01-62, 01-13, Ol-^W; Port Churruca, Straits of Magel- 

 lan, 01-53, 02-50. 



