LVCODIN.E. 



B. Species taken beyond the 300 fathom line. 



Polar Deptlis or the cold area '|: 



Lycodes frigidus Coll. 



( — esmarkii Coll. (jiiv. ; Fteroe-Cliannel)). 



— eiidipleiirostictus Jen.sen. 



— pallidus Coll. 



— platyrhmus Jen.sen (between Iceland 



and Jan Mayen). 



— liitkenii Coll. (W. from vSpitzbergen). 



Lycodes setniniidus Reinh. 

 Lycenchelys fmircsna Coll. 

 Lycodonus flagellicauda Jensen. 

 North Atlantic Ocean: 

 Lycodes microcephahis Jen.sen. (S.W. from 



Iceland). 

 Lycenchelys ingolfianus Jensen. (Davis Straits). 

 Lycodonus ophidium Jensen. (S. from Iceland). 



Systematic Part. 



Fam. Zoarcidce Swainson (1839). 



Sul)tam. Lycodince Jordan & Evermann (1898). 



Bod\' elongated, zoarciform or angnilliform, co\-ered to a more or less extent 

 by small ronnd, non-imbricate scales, which are sometimes wanting. Lateral line 

 ventral, mediolateral or double, often less distinct. Fin-rays soft and jointed; the 

 unpaired fins are continuous, and the dorsal fin has no depressed portion; pectoral 

 fins w ell -de V eloped; ventral fins present, with few short rays, jugular in position, 

 (iill-membrane firmly united below to the throat. Teeth on the mandible and inter- 

 maxillar\', often also on the vomer and palatal bones. Pseudobranchia; present; no 

 swimbl adder; pyloric appendages riadimentary |2) or absent. 



Key to the determination of the European and Greenland genera of Lycodinae. 



I. Bod\- zoarciform, height over the anus contained ca. 7 — 12'\. times in the total 

 length. Lycodes Reinh. P. 10. 



II. Body angnilliform, height over the anus contained ca. 16 — 30 times in the total 

 length. 



A. B r a n c h i o s t e g a 1 r a >" s 6. Ly cenc/ie/ys Gill. P. 82. 



B. Branchiostegal rays 5. Lycodonus Goode & Bean. P. 93. 



Lycodes Reinhardt. 



Lycodes Reinhardt, Overs. K. D. Vidensk. Selsk. Forhandl., 1830—31, p. 74 yvahlii). 



Lycodalepis Bleeker, Versl. K. A. W. 2 e Rks., VIII, 1874, p. 369 {mucosus). 



L^ycias Jordan &. Evermann, The Fishes of North and Middle America, Part III, 1898, p. 2463 (seminudus). 



I) By kPolar Depths» I understand the deep waters which are bounded to the south, not by the polar circle, but by 

 the submarine ridge between Greenland-Iceland- Faeroe Isles-Shetland; because north of this ridge, polar water with a tempera- 

 ture under o° C. (the • cold area») is constantly found at the bottom where this lies more than c. 300 fathoms under the surface. 



