LYCODIN^. 25 



St. Ill 860 fathoms — o°9 C. 6 specimens 



- 119 loio — — i"o - 10 — 



- 112 1267 — — i-i - 6 — 



- 1 18 1060 — — i°o - 8 — 



- 117 1003 — — i°o - 5 — 



- 113 1309 — -- i°o - I — 



The EngHsh expeditions of the Knio:ht Errant and Triton (1880 and 1882) caught a large 

 number of specimens in the cold portion of tlie Faeroe Channel at 540 — 640 fathoms, bottom-tempera- 

 ture 292 and 30- F.; the largest of these specimens was a male which measured ca. 558 mm. (22 inches) ')• 

 The Norw. North-Atlantic Expedition took 15 specimens, 37—510 nnn. long, off the west of Norway, 

 west from Bear Island and west from Spitzbergen; the depths were (260) 457—1333 fathoms, bottom- 

 temperature (^ I -I) — o°7 to — 1-6C. -'). Again, the Nathorst Expedition of 1898 took i .specimen off 

 West Spitzbergen where the depth was 2750 meters and the bottom-temperature — i°4 C. Further, the 

 Kolthoff Expedition of 1900 caught 3 specimens between Jan ]\Ia\en and Greenland (72"' 42' N.L. 14° 

 49'W.Iv.) at 2000 meters. La.stly, the Michael vSars in 1902 caught 17 .specimens (290— 530 nnn. long) 

 north from the Fseroes (63" 13' N.L. 6" 32' W.L.), where the depth was 975 fathoms, also 2 specimens 

 (366— 430 mm. long) in the cold area off western Norway (63 7' N.L. i' 38' E.L.), where the depth was 

 650—720 fathoms. 



L. frigidus is so generalh- distributed over the deeper and deepest parts of the Polar Depths, 

 from Spitzbergen down to Iceland and the Fseroes, that it may be reckoned amongst the most 

 characteristic inhabitants of this deep-sea ba.sin. 



I feel \-er\- dubious, therefore, on finding that the American authors have identified a L}codes 

 occurring generalh- in the western part of the true Atlantic Ocean, with L. frigidus Coll. from the 

 ice-cold Polar Depths. I believe, indeed, I am in a position to sa}- there must be some error in this 

 determination. Although it is be>ond the scope of the present work to enter upon the American 

 forms, I shall vet make an exception in this case since it presents a very important question in 

 biological regard, namel\-, whether a species of fish can be connuon to the warm ground in the depths 

 of the Atlantic and to the ice-cold depths of the Northern Ocean. 



Lycodes atlanticus Jensen. 

 1895. Lycodes frigidus Goode & Bean (nee Collett), Oceanic Ichthyology, p. 305; iSIem. of the Mu.seum 



of Comp. Zool. at .Harvard College, vol. XXII. 

 1898. L. frigidus Jordan & Evermann (nee Collett), Fishes of North America, III, p. 2465. 

 1901. L. atlanticus Jensen, Vidensk. Medd. Naturh. Foren. Kbhvn., p. 207. 



1) Giluther (I.e. I has referred this to L. 7-eiiculatus Reinh., but both F. A. Siiiitt and Liitken have remarked upon 

 its resemblance to L. frigidus Collett. It agrees perfectly in fact with the large male of L. frigidus from the Ingolf Expedition, 

 as appears both from Giinther's description and figure; onl}-, Giinther gives his specimen a mediolateral lateral Hne, which 

 must rest on some error. 



2) It is possible that the specimen from the relatively small deptli (260 fathoms) with high bottom-temperature 

 (_(- i°i c.| arises from an error in determination; Prof. Collett has kindly informed me that it was given away to some 

 Museum so that the determination cannot now be controlled; concerning a second specimen from 350 fathoms (N. North-Atlantic 

 Exped. St. 124) which Collett has mentioned, I have already remarked that Uie early appearance of the scaly covering 

 indicates that it is no L. frigidus (cf. p. 23). 



The Ingolf-Expedition. H. 4. 4 



