Contributions to the Knowledge of the Genus 
Lycodes, Reinh. 
I. Lycodes sarsii, Coll. 
by 
R- Collett, 
angst the Arctic deep sea fishes, the genus Zycodes is of special 
interest, not only on account of its extensive distribution, in which respect 
it is nd surpassed by any of the present known genera of Arctic fishes, 
but also of account of the comparatively great changes in the colouration 
and external appearances of its numerous species. 
The typical genus Lycodes is represented both in the Arctic and 
Antarctic seas!; the majority of the species noted, belonging, however, 
to the Arctic (and Sub-Arctic) regions. The family is there circum-polar, 
and apparently belongs to the most numerous of the deep sea fishes 
which occur in those regions, as it, in one or another form, is to be found 
(in parts in great numbers) in as good as all those parts where deep sea 
investigations have been instituted, from the North of Spitzbergen down 
to the Farge Channel in the Eastern, and from Greenland to the New- 
foundland Banks in the Western Atlantic. 
In the Antarctic seas where, however, our knowledge of the deep 
sea fauna is, comparatively, slight, the genus appears to be more sparingly 
represented. At least one species from those parts is, however, known 
to us, having been met with by the Challenger Expedition in the Straits 
of Magellan? whilst some other species from those parts are considered 
as forming distinct genera. 
1 To which may be added a number of forms, which, by several authors are classed 
under separate genera. 
2 Giinther, Rep. Scientif. Res. Voy. Challenger 1873—76, Zool. Vol. I, Part VI, Report 
on the Shore Fishes, p. 21, Pl. XI, Fig. B (London 1880). 
Vid.-Selsk. Skrifter. M.-N. Kl. 1808. No. 1. 17 
