gyø Frits Johansen. 



milt; and of the 3 females taken at the same time 2 had small eggs 

 (ca. 1-5 mm) in the ovary, whilst a female of 625 mm had numerous 

 loose eegs (ca. 5 mm in diameter) in the abdominal cavity; these 

 were damaged, 'however, the yolk having run out (the fish was dead 

 when taken in the net); a few eggs of the same size were present 

 in the ovary, which however chiefly contained much smaller eggs. 

 This was probably an abnormal condition; to judge from the capture 

 of a c? of 416 mm (22.-9. — 06) which had the characteristic features 

 of the spawning time (hooked jaws, strong colours), the deposition 

 of the eggs probably takes place in the autumn. 



One of the large fish taken in July 1908 (a male of 645 mm) 

 had the characteristic monstrosity "pug-dog head" (short snout and 

 upper jaw), which is described and figured by Smitt^ in Salmo 

 salar. 



On examining the contents of the stomach of the specimens 

 taken I have found, that the smaller (ca. 100 — ca. 200 mm) contained 

 mud from the bottom of the lake, but especially a quantity of larvæ, 

 puppæ and imagines of flies (Chironomus). Several of the large 

 specimens (over ca. 400 mm) had small fish in the stomach, partly 

 of the same specimens (22. — 9. — 06, July 1908), partly Gadus saida 

 fry (July 1907); further larvae of flies, Entomostraca and green 

 algae. It should also be mentioned, that these large fish often had 

 Cestodes in the intestinal fluids and various parasites (Nematodes 

 for example) in the wall of the intestines; a specimen ca. 170 mm 

 long was found dead on 20. — 7. — 07, obviously killed by the many 

 parasites. 



As is well-known this fish serves as food for the North-East 

 Greenland Loon {Colgmbus septentrionalis), from whose presence in 

 summer in the different lakes we can often conclude as to the 

 presence or absence of the sea-trout; it is also this fish probably 

 which entices the fjord-seal {Phoca foetida) in to the river-mouths 

 (where they are often seen for hours at a time) at the period when 

 the ice breaks up here and the migration of the fish begins (Hvalros- 

 odden July 1907). 



With regard to the colour of the fish, without framing varieties 

 or entering into a discussion of their value by comparison of my 

 specimens with those earlier known, I shall only describe what I 

 am certain about, on the basis of personal observation and coloured 

 sketches of the living fish. 



The young fish of 30 mm (PI. XLV, fig. 7) still had to some 

 extent a larval appearance, the membrane of the caudal fin being 

 continued almost round to D- and A. The dark cross-bands are 



' Skandinaviens Fiskar. Stockholm 1895. II Del. P. 854, fig. 213. 



