4 SMITT, ON THE GENUS LYCODES. 



Now, in our studies of tlie KoLTHOFF-collection and the 

 other specimens of Lycodcs, preserved in the Royal Museum, 

 numbering about 80 specimens, our results with some modi- 

 fications are essentiallj?- the same as those presented by E,ein- 

 iiARDT, and thus at first we may consider the mentioned 

 characters. 



In the same manner as when treating the patagonian 

 Lycodoids,^ I have measured 80 specimens, using the following 

 designations: 



a: total length of the body, exi)ressed in millimeters, 



h: length of the head, 



0^: » » » » reduced (without the operculum), 



/'2' » » » cheek (from the back point of the maxillary 

 to the hind margin of the preoperculum), 



bj,: length of the postorbital part of the head, 



Itc: breadth of the head at the eyes, 



It t: largest breadth of the head behind the eyes, 



c: longitudinal diameter of the eyes, 



e: length of the nose, 



(f: breadth of the interorbital space, without the membranous 

 fold of the skin covering the upper part of the eyes, 



c/^: breadth of the interorbital space together with the skin över 

 the eyes, 



h: length of the upper jaw, 



k: » » » lower » 



br: breadth (height) of the branchial aperture, 



ir: length of the trunk, from the upper axil of the pectorals to 

 the beginning of the anal fin, 



m: distance from the point of the nose to the beginning of the 

 dorsal fin, 



n: length of the dorsal fin to the tip of the last (caudal) rays, 



?i, : » » » » » » » » » » tail (without cau- 

 dal rays), 



o: length of the longest ray in the dorsal fin, 



2?: » » » pectoral fins, from the upper axil to the tip of 

 the fin, 



pb: breadth (height) of the base of the pectoral fins, 



r; distance from the point of the nose to the base of the ven- 

 tral fins, 



r, ; distance from the point of the lower jaw to the base of the 

 ventral fins, 



i-, length of the ventral fins, 



t: distance from the base of the ventral fins to the beginning 

 of the anal fin. 



1 Bih. Vet. Akad. Handl., Bd 24, Afd. IV, N:o 5, p. 39. 



