70 



LYCODIN^. 



tion is also \'erv similar: 7 saddle-shaped bands, bordered b\' a dark margin, break the light gronnd- 

 coloiir; between the foremost band and the dark-coloured neck there is a light cross-stripe. In addition, 

 a brown stripe is present on the head, extending from the snout under the eye on to the gill-covers; 

 further, there is a light o\-al spot but surrounded b\- a dark margin, behind the eye towards the upper 

 side. The pectorals count 20 — 21 rays; in one specimen there are 92 ra\s in the dorsal fin, 73 rays 

 in the anal. 



One of these si^ecimeus is represented in fig. i a on Tal). \'III. 



Comparison with Ly codes reticulatus. 

 The present form displays no slight resemblance to L. reticulatus Reinh. from West Greenland, 

 mainh' in respect to colouration, as both in the older stages have the dark cross-bands transformed 

 to a more or less distinct network-formation; further, they have a mediolateral lateral line; nor do the 

 numbers of rays in the fins present any differentiating character. On the other hand, it seems as if 

 the variety inacrocephaiiis was a form with relatively large head and large eye, which will apj^ear 

 from the following comparison between two male specimens of almost equal size: 



Total len.Ljth in nun. 



Length of the head in o o of total length 



Longitudinal diameter of the eve — 



L. reticulatus 

 forma typica | var. macrocephalus 



255 

 25.1 

 3.5 



245 

 28,6 



4.3 



Fitrther comparison between almost equally large adult .specimens is ttnfortunateh' not possible 

 for the time being, as L. reticulatus is not present in smaller nor var. tnacrocephaliis in larger male 

 specimens than those given, and there is also a great gap in size between the females at hand. I 

 must provisionalh- suggest that the differences noted cannot be overlooked without further investi- 

 gation and that two varieties are to be reckoned with. 



If we bring L. perspicillitm Kr., the supposed young of L. reticulatus^ into the comparison, 

 we see that the voung of the latter have likewise a smaller head as well as a relativelv longer tail: 



Total length in mm. 



Length of the head in "o of total length 



Distance from .snout to anus — — 



L. rossi Malmgr. (from Spitzbergen and the Kara Sea) is also near to the present form, but it 

 has a smaller head (length, 22,4 — 25,3 % of the total length) and relativeh- small e)es (longitudinal 

 diameter, 3,6 — 4 "/„ of the total length). In addition, L. rossi has on the average fewer rays in the 

 pectorals, namely (17)18 — 19(20), and the marking does not change over into the reticulate. 



