I.YCOIMN.K 



Other differences are also present, which just as distinctly declare against the two forms being 

 identical. The American specimen, for example, has much larger scales so that the number in the 

 vertical line from the anus to the base of the dorsal fin amounts to 34; whereas, on the same line in 

 a specimen of L. frigidus from the Polar Depths their are ca. 55 scales, although its total length is 

 the same. Lastly, the American form has 23 rays in the pectoral fins whilst tin- number in the 

 species from the Polar Depths is at most 21. 



I can come to no other conclusion therefore, than that we have to deal with two species well 

 separated in important structural features. The American form must consequently be renamed, and 

 conveniently L.atlanticus 1 ), which characterises it zoo-geographicallv in contrast to the /.. frigidus of 

 the ice-cold Polar Depths. 



For the rest, it must be left to the American ichthyologists to give us further enlightenment 

 upon this species since they have of it a large material at their disposal. 



Lycodes esmarkii Collett. 

 Tab. Ill, Fig. 2 .1, b, < 



iS6q. Lycodes I'ah/i Ksmark, Bidrag til Fimnarkens Fiskefauna; Forh. v. Skand. Xaturf. 10. Mode i 



Chria. 1868, p. 524. 

 [875. A. esmarkii Collett, Norges Fiske; Tillaegsh. til Vidensk. Selsk. Forhandl. Chria. 1874, p. 95. 



1879. L. vahlii Collett, Meddelelser om Norges Fiske i Aarene [875- 78; Forhandl. Vidensk. Selsk. Chria. 

 1879, No. 1, p. 62 (partim). 



1880. L. esmarkii Collett, The Norw. North-Atlantic Expedition, Fishes, p. 84 (partim), PI. Ill, Fig. 22. 

 1884. L. esmarkii Collett, Meddelelser om Norges Fiske i Aarene [879 83; Nyt Magaz. f. Naturvidensk. 



29 B., p. 73 (partim ). 

 1891. L. esmarkii Lilljeborg, Sveriges och Norges Fiskar, II, p. 6 (partim). 

 1895. L. Vahlii Smitt, Skandinaviens Fiskar, II, p. 613 (partim), Fig. 144. 

 [Sgq. A. vahlii Louuberg, Bihang K. Sv. Vetensk.-Akad. Handl. Bd. 24, Afd. IV", No. 9, p. 2\ 

 1901. [..esmarkii Jensen, Vidensk. Medd. Naturh. Foren. Kbhvn., p. 213. 



Height over the anus amounts to 8,g — 1 4,4 " ,, of the total length. Length of 

 the head in adult males is 21 — 24%, in adult females and young individuals 19,2 

 21,9% of the total length. The tail is distinctly longer than the head and trunk 

 together, as the distance between the snout and the anus amounts to 37,5 (.2,9 

 of the total length. The posterior margin of the pectorals rounded without 

 indentation. Col u r b r own, with a light stripe over the neck ( o r a light s p o t o n e a eh 



■I I ought however to explain, that the new species has points of connection with the /.v. oni the 



banks of Newfoundland, 155 in., founded by R. Collett in 1S96 (Resultats Camp. Scient. Ubert I. Fas< V p 54. But in two 

 specimens of similar size (370 & 310 mm.) to the above named L. atlanticus, the length ol the head i- 18,9 is.; ... the distance 

 from snout to anus 35,1— 35,5 %, of the total length. In addition, there is a characteristic difference in regard to the teeth 

 equipment of the palatines: in L. terrm-nova there are only 3 -5 teeth on the palatines, and the whole ro-n is scarceh halt 

 so long as that on the iutcnnaxillaries; whereas, in L. atlanticus there are ro teeth on the palatines, and the whole row is 

 more than double that on the intermaxillaries. 



1 



