LYCOIHN.H. 



73 



Tlie length of the head in males is 27—28,5%, in females 25— 28°/ of the total length. Seen 

 from the side, the upper margin is almost horizontal at the neck, and from there slopes gradually, 



evenly and almost in a straight line down towards the snout, which is low; the under margin 

 rises up slightly only in front; seen from above, the head decreases but little in breadth towards 

 the anterior end of the snout, which is broadly rounded off so that the outline of the head forms an 

 elongated oval. The crown is flat, the cheeks almost perpendicular or only slightlv convex; taken with 

 the depressed and broad, somewhat flat snout, this gives the head a characteristic appearance, re- 

 minding one somewhat of a pike. The eyes are situated high up, so that their upper border juts 

 forward over the forehead; the size decreases a good deal relatively with age, their longitudinal dia- 

 meter going 4,8—9,4 times in the length of the head, i. e. 5,3 — 3",. of the total length; the distance 



>wm 



Fig. 11 u. The head of Lycodes seminudus, seen from above and underneath, x i ,. 



From a ;,;,5 mm. long specimen (Q) from the innermost parts of the I'niaiiak Fjord [West Greenland), 200 m. Drygalski- 



Expedition (Dr. E. Vanhoffen), [7.3.1S93. 



between the two eyes is almost equal to ' . rds of the longitudinal diameter of the eye (in old speci- 

 mens quite equal to this). The length of the snout to the eye, is 5,3 -2,1; times in the length oi the 

 head or 7,5 — 10",, of the total length. The upper jaw reaches to a perpendicular line through tin 

 centre or anterior third of the eve, and anteriorlv it extends a little in front of tin- lower jaw. The 

 lips are rather fleshy along the upper jaw and on the sides of the lower, but somewhat thin in front 

 on the latter; the fold of skin along the under margin of the latter is relatively little developed the 

 whole wav (see fig. 12 in text). The free flap of the gill-cover is relatively long and bent up at the 

 corner. There is a number of shallow grooves for the lateral line along the uppei and under jaws. 

 The teeth are truncate and conical or almost cylindrical, in a double row on the intermaxillary an- 

 teriorly, in three rows (2 in young specimens) on the inaudible anteriorly, but otherwise form .1 single 

 row; in larger specimens I have counted 17 24 teeth in a row on the intermaxillary, 16 ' | on the 

 palatines, 3 6 on the vomer and 17—26 in a row on the mandible. 



The [ngolf-Expedition. II- \ IO 



