6o 



LYCODIN.E. 



In relation to the total leng-tli, tlie length of the head is 25,7 ^'/„, the distance 

 between t li e snout and t li e a n n s 47,3 " , , , , the height over the anus 12,7 " ' o , the lon- 

 gitudinal diameter of the eye 3,3 "'„, the length of the pectoral 16,8 •> o- The colour 

 is grav-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), 

 3 7 (J mm. 



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



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



Remarks on the Synonymy. 



[.. lutkenii was established in iSSo by R. Collett for a species, a single specimen of which, 370 nini. long, was 

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

 rature — 1° C; it was previoii.sly described by the same author in 1878 under the name L. relica/aius Reinhardt, an error 

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

 Copenhagen. 



Later, /,. liitkenii was reported, on the authority of Liitken, to have been again found in numbers both by the 

 IJijmphna and Ingolf Expeditions. In 1886 he referred no less than 28 specimens from the Kara Sea to L. lutkenii: I have 

 come 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 agnostus (cf. p. 79). In 189S further, Liitken 

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

 variety of Lycodes pallidus Coll. van 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 Nathorst-Kolthoff 

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

 mimidus Reinhardt, and must be considered as a colour-variety of tliis species fsee further p. 72;. 



On Lycodes liitkemi Coll. (nee Liitken). 



This form has been described in detail and well illu.strated by Collett in his work on the 

 fi.shes 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 belie\ing it to be a distinct species from 

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

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

 briefly discuss the mutual relations of these forms. 



If the single female specimen of L. lutkenii is compared with a specimen of L. scininudus of 

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

 vet L. liitkenii is a less slender form, as will be seen: 



Total length in mm 



Length of the head in o o of total length 



Distance from snout to anus — — 



Height over the anus — — 



L. seminudus 

 ? 



335 

 25.1 

 46,9 

 10,2 



L. liitkenii 

 ? 



.170 

 25.7 

 47.3 



■2,7 



