lO LYCODIN^. 



B. Species taken beyond the 300 fathom line. 



Polar Depths or the cold area)'): I Lycodes seminudiis Reinh. 



Lycodes frigidus Coll. ' Lycenc/ieiys miircEua Coll. 



( _ esmarkti QoW. []\\\.\V XX oe-Q\\a.rmQ\)). \ Lycodonus Jlagellicauda ]&ns&n. 



— etidipleurostictus Jensen. 2. North Atlantic Ocean: 



— pallidus Coll. Lycodes inicrocephalus Jensen. (S.W. from 



— platyrhinus Jensen (between Iceland 1 Iceland). 



and Jan Mayen). \ Lyceiiche/ys ingo/^anus ^ens&n. (Davis Straits). 



— lutkenii Coll. (W. from Spitzbergen). 1 Lycodonus ophidiiim Jensen. (S. from Iceland). 



Systematic Part. 



Fam. Zoarcidce Swainson (1839). 



Subfam. Lycodince Jordan & Evermann (1898). 



Body elongated, z o a r c i f o r m or a n g u i 1 1 i f o r ra , covered to a more or less extent 

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

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

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

 fins well-developed; ventral fins present, with few short rays, jngnlar in position. 

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

 m a X i 1 1 a r )■ , often also on the vomer and palatal bones. P s e ti d o b r a n c h i lc present; no 

 swimbladder; pyloric appendages rudimentary (2) or absent. 



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



I. Body zoarciform, height o\-er the anus contained ca. 7 — 12'/2 times in the total 



length. Lycodes Reinh. P. 10. 



II. Body a n g u i 1 1 i f o r m , height over the anus contained c a. 16 — 30 times in the total 

 length. 



A. Branchiostegal rays 6. Lycenchelys 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 {vahlii). 



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



Lycias Jordan & Evermann, The Fishes of North and i\Iiddle America, Part III, 1898, p. 2463 [seminudus). 



■J By Polar Depths* I understand the deep waters which are bounded to Uie south, not by the polar circle, but by 

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

 ture under 0° C. (the » cold area^) is constantly found at the bottom where this hes more than c. 300 fathoms under the surface. 



