LYCODIN^. 



Other differences are also ])reseiil, which just as distiiictlx' declare against the two forms beinj^- 

 identical. The American specimen, for example, has much larsifer 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 there are ca. 55 scales, although its total length is 

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

 species from the Polar Depths is at most 21. 



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

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

 conveniently L. at/anttcics^), which characterises it zoo-geographically in contrast to the L. frigidus of 

 the ice-cold Polar Depths. 



For the rest, it must he left to the .Vmericau ichtluologists to gi\-e us further enlightenment 

 upon this species since they luue of it a large material at their disjiosal 



Lycodes esmarkii Collett. 



Talj. 111. FiK- 2 a. li, c. 



1869. Lycodes Vahli Esmark, Bidrag til Finmarkens F-i.skefauna: Forh. \'. Skand. Xaturf. 10. Mode i 



Chria. 1868, p. 524. 

 1875. L.esmaykit Collett, Norges F'iske; TilUegsh. til Vidensk. Selsk. Forhandl. Chria. 1874, p. 95. 



1879. Z,. z/a///« Collett, Meddelelser om Norges Fiske i Aarene 1875—78; P~orhandl. \'idensk. Selsk. Chria. 

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



1880. f.. esmarkii Collett, The Norw. Xorth-Atlantic Expedition, F'i.she.s, j). 84 (jjartimi, PI. Ill, Fig. 22. 

 1884. L. esmarkii Collett, .Meddelelser om Norges Fiske i Aarene 1879 S3; Nyt Magaz. f. Xaturvidensk. 



29 B., p. 73 (partim I. 

 1891. L.esinarkii Lilljeborg, Sveriges och Norges Fiskar, II, p. 6 (partimi. 

 1895. L. Vahlii vSmitt, Skandinaviens P'iskar, II, p. 613 (partim). Fig. 149. 

 1899. /-. &><?////?■ Lonnberg, Bihang K. Sv. Veten.sk.-Akad. Handl. Bd. 24, Afd. IV, No. 9, p. 23. 

 1901. L. esmarkii ]&nsQw, \'idensk. Medd. Naturh. Foren. Kbhvn., p. 213. 



Height over the anus amounts to 8,9 — 14,4",, of the total length. Length of 

 the head in adult males is 21 — 24",,, in adult females and young indi\iduals 19,2- 

 2i,9"o of the total length. The tail is distinctl\- longer than the head and trunk 

 together, as the distance between the snout and the anus amounts to 37,5 — 42,9% 

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

 indentation. Colour brown, with a light stripe over the neck (or a light spot on each 



■) I ought however to explain, thai the new species has points of connection with the Lycodes ierrcr-itovcv from the 

 hanks of Xewfouudland, 155 m., founded by R. Collett in 1S96 (Resultats Cam]). Scient. .Mljert I. Fasc. X, p. 54 . But in two 

 specimens of similar size (370& 3iomm.l to the above named L.allanlicus, the length of the head is 18,9—18,400, the distance 

 from snout to anus 35, 1—35,5 " o, of tlie total lengtli. In addition, there is a char.icterislic difference in regard to the teeth- 

 equipment of the palatines: in L terrct-7iov(B there are only 3—5 teeth on the palatines, and tlie whole row is scarcely half 

 so long as that on the intennaxillaries; whereas, in L. aitanticus there are 10 teeth on the palatines, and the whole row is 

 more than double that on the intennaxillaries. 



4* 



