gy2 Frits Johansen. 



and V have the red colour most marked along the innermost 

 (shortest) rays, fading and changing to golden outwards; furthest 

 out (anteriorly) the red colour is wanting, being replaced by whitish- 

 blue (especially on V). 



In fish of this size the colour changes as soon as the fish dies, 

 the dark cross-bands disappearing almost entirely; the colour of the 

 fins however is surprisingly durable. Sometimes we find specimens 

 on which at various places (head, D- and C) there are coal-black 

 shadowy spots — a feature which has been mentioned earlier (see 

 Cottiis quadricornis) and becomes still more apparent in the larger 

 fish (see these). 



The change in colour in the fish from ca. 150 — ca. 400 mm is 

 now seen especially in the fins, on which tlie pigment becomes 

 stronger and more definitely bounded (the white margin on the 

 outer margin of V and lower margin of A becomes very distinct 

 and broad); further, the dark cross-bands of the trunk and tail are 

 now absorbed in the olive-green-brown to bluish-gray ground-colour; 

 on the other hand, the light spots on the sides are now larger, more 

 numerous and redder than in the younger individuals. 



In fish over ca. 400 mm there are two colour varieties. 



In the first the dorsum is metallic greenish-blue to grayish-black 

 with an even transition to the silvery flesh-coloured side; the latter 

 colour changes through lilac tones to the white colour of the belly; 

 on the sides of the fish and on С there are many larger and smaller, 

 light yellowish-red spots at a distance of ca. 2 cm from one another 

 and arranged in several longitudinal rows. Under a line from the 

 base of P to the base of the lowermost (outermost) caudal ray there 

 are no spots; the largest of these are situated round about the 

 lateral line, but there is no regularity in their number. Of the fins 

 D^ has the colour of the dorsum mixed with whitish-gray (the latter 

 colour is specially distinct on the front margin); posteriorly the 

 colour changes to yellowish-red. D- almost as the foregoing. С also 

 has the colour of the dorsum with whitish-blue outer margins above 

 and below; but the two outermost rays above and below are yellowish- 

 red. A has a white anterior margin, dark central part and red 

 posterior and upper margin; V like the foregoing (outer margin = 

 anterior, inner margin = posterior), P like D^ (outer margin = 

 anterior; inner margin = posterior); but the upper side was con- 

 siderably darker than the under side (the same applies to V). 

 Cavity of the mouth black between palate and upper jaw, otherwise 

 white. 



The second variety differs from the foregoing in that the dorsum 

 is olive-green to green and especially in that the sides and belly are 



