LYCODIN^. 



73 



The length of the head in males is 27—28,5%, in females 25-28",, of the total lenoth. 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 maro-in 

 rises up slighth- onl\- 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 o\-al. The crown is flat, the cheeks almost perpendicular or ouh- slightl>- 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 relativeh- witli age, their longitudinal dia- 

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



\. 



Fig. II - 12. The head of Lycodes scmhiiidiis, seen from above and underneath. X 3/4. 



From a 335 mm. long specimen (Q) from the innermost parts of the Umanak Fjord iWest Greenland), 200 m. Drygalski- 



Expedition (Dr. E. Vanhoffen), 17.3. 1S93. 



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

 mens qttite equal to this). The length of the snout to the e\-e, is 3,5—2,9 times in the length of the 

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

 centre or anterior third of the eye, and anteriorly it extends a little in front of the lower jaw. The 

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

 on the latter; the fold of skin along the under margin of the latter is relati\eh- little developed the 

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

 corner. There is a number of shallow grooves for the lateral line along the upper 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 mandible anteriorly, but otherwise form a single 

 row; in larger specimens I have counted 17 24 teeth in a row on the intermaxillary, 16-24 o" the 

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



The [n^oIf-Expedition. II. 4. Iq 



