6o 



LYCODIN^. 



In relation to the total length, the length of the head is 25,7 "/o, tlie distance 

 between the snont and the anns 47,3 "/o, the height over the anns 12,7 " o, the lon- 

 gitndinal diameter of the eye 3,3 "^'o, the length of the pectoral 16,8 "'o. The colour 

 is gra\' -brown with 7 broad, dark cross-bands; a light band across the neck. The 

 scales extend to a point under the anterior end of the dorsal fin. The lateral line is 

 niediolateral. Pyloric appendages 2. The size (of the single specimen, a female), 

 370 mm. 



D. 94. A. 76. P. 23. 



Distribution, \V. from North Spitzbergen, 459 fathoms. 



Remarks on the Synonjiny. 



L. liitkeiiii was established in iSSo by R. Collett for a .species, a single specimen of which. 370 mm. long, was 

 taken bj' the North-Atlantic Expedition W. from North Spitzbergen, where the depth was 459 fathoms and the bottom-tempe- 

 rature — 1° C; it was previously described by the same author in 1878 under the name L. reiiculatus Reinhardt, an error 

 that Collett himself corrected in the interval after he had examined the real L. reticulaius in the Zoological Museum of 

 Copenhagen. 



Later, /,. liilkciiii was reported, on the authorit}' of Liitken, to liave been again found in numbers both bv the 

 Dijmphna and Ingolf Expeditions. In 1.SS6 he referred no less than 28 specimens from the Kara Sea to L. luikeiin: I have 

 co::ie to the conclusion however, that the largest of these specimens must be referred to L. rossi Malmgr., and that the 

 others constitute a new species, belonging to the scaleless Lycodes: Lycodes agnostas (cf, p, 791, In 1S98 further, Liitken 

 mentioned quite briefly that the Ingolf had taken 6 L. lutkenii S. from Jan Mayen, Five of these however, are a colour- 

 variety of Lycodes pallidas Coll. var. similis mihi (cf. p. 46). The sixth specimen was rightly determined according to my 

 earlier opinion, as expressed in my preliminary report on the Lycodes of the Ingolf Expedition (1. c), but after examining a 

 whole series of similar specimens in the Stockholm Riks-Museum, brought from East Greenland by the N athorst- Kol thof f 

 Expeditions, I have come to a different conclusion, namely; that we have here a form which cannot be separated from L. se- 

 tninudtis Reinhardt, and must be considered as a colour-variety of this species (see further p. 72/ 



On Lycodes liitkenii Coll. (nee Liitken). 



This form has been described in detail and well illustrated by Collett in his work on the 

 fishes of the North-Atlantic Expedition. After I had learnt, through the kindness of Prof. Collett, 

 to know it for myself, I became quite at one with him in believing it to be a distinct species from 

 L. reticiilatiis Reinh. as C. has well shown (1. c. p. 104). In certain respects, L. liitkenn is nearly re- 

 lated to L. semiimdiis, as we now know it with the banded colour-markings, and I shall therefore 

 briefly discuss the mutual relations of these form.s. 



If the single female specimen of L. liitkenii is compared with a specimen of L. seminudus of 

 the same sex and similar size, they agree essentialh- in the most important proportions of tlie body; 

 vet L. ii{tke)m is a less slender form, as will be seen: 



