The fishes of the Danmark Expedition. 645 



where it is extremely common (also occurring in deeper water), it 

 is possible that 77°N.L. forms a northern boundary for this species. 

 Just as in Denmark it occurs both in salt and brackish water; nor 

 does it seem to be troubled when the water of its habitat becomes 

 quite fresh from the rivers (Hvalrosodden). All the specimens taken 

 are from July and August 1907 ; the smallest were 50 mm and of 

 the larger there were 2 c^ (178 and 205 mm) and 1 ? (over 200 mm). 

 The last (from 24/7) had relatively large eggs; in the stomach of 

 the c? of 205 mm were numerous, large Chaetopods, a few Amphipods 

 and a parasitic Nematode. 



Regarding the colour of the fish, I have made two coloured 

 sketches from life and noted the following. At a size of ca. 50 mm 

 the fish is easily distinguished by its large head and the short body 

 and tail; under the 2nd dorsal fin the dark-brown colour of the 

 back forms a characteristic marking against the light belly. The 

 fins have a fine, rose-red longitudinal streak partly on the skin 

 partly on the rays (except the ventrals, which have the light colour 

 of the belly). At a length of 178 mm (c?) the red streaks on the 

 fins of the younger fish have become overshadowed (except on the 

 outer margin) by alternating yellow and black cross-bands (in 

 number 2—3-1-2 — 3), which are specially distinct on the rays; the 

 ground-colour of these fins (that is, except the ventrals) is gray. 

 The ventrals and the underside of the head are light-coloured; the 

 former have 3 -|- 3 alternating, broad, yellow (outermost) and red 

 (innermost) cross-bands. The jugular region is light-yellow, the belly 

 pinkish with the characteristic, rounded, whitish-yellow spots. The 

 dark-brown colour on the upper side of the fish does not differ 

 from the well-known, characteristic marking in the more southerly 

 forms. The female of over 200 mm was found dead in the water, 

 and its colour was thus greatly bleached; so far as I could see, 

 its colours were almost like those of the males, only slightly fainter. 



Cottus quadricornis L. 



This species differs from the foregoing in that it is mainly 

 distributed in the littoral region (down to ca. 10 m), though a few 

 are also found in the deeper Laminaria region. It is also much 

 more abundant than C. scorpius in contrast to what is the case 

 further south along the east coast ^ (where it is taken in the same 

 depth), and as I have been able to observe this fish in the living 

 condition in it snatural surroundings, I have no hesitation in naming 

 it as the typical fish of the littoral region. If we row in a boat 

 over depths where the bottom can be seen the whole time, we can 

 1 Ad. S. Jensen: 1. с p. 228. 



