6 



AD. S. .IKNSKN. 



[SEC. ARCT. EXP. FKAM 



Subsequently l>i;i-u, returned to this matter 1 . After having exa- 

 il live sea-scorpions from Godhavn in Greenland, and compared 

 them with fulfil* xcorpins. he finds that the "subspecies" grcenhm- 

 tlirun differs from the former, besides in its superior size, in the greater 

 interohital width, and in the great or height of the spine-rayed dorsal fin. 

 \Vr \\ill iid\v look mt>iv clo.M-lv at these statements. 







According to Dresel, the interorbital width in the subspecies gwn- 

 l<ui<li<-i<x. i- contained I. I 1 /,,, or I 1 j times in the longitudinal diameter 

 of the eye. \\hereas the width in Coitus SCOrpius seldom exceeds B / 8 of 

 the longitudinal diameter of the eye. I have investigated this circumstance 

 and found the following proportions: 



Coitus scorpins from Greenland. 



Total 



-'Vi mm. 

 252 



2:\2 

 230 

 215 

 L93 

 180 



cf 

 9 

 9 



9 

 c7 

 9 

 cf 



Proportion <>f interorbital 



\vidtli to longitudinal 



diameter of llu 1 eye 



1 : I 



i 

 3 



I 

 1 



1 

 5 

 4 

 1 

 1 



3:4 

 4:5 



Total 



J-'!0 imn. 



230 

 226 







Cottus scar/iiux from Europe. 



Proportion of interorbital 



Locality Sc\ width to longitudinal 



The Sound 9 

 I'pper llaltic 



213 



The Sound 

 North Sra 

 l'|iper lialtic 

 l-'aroe |s| rs cf 

 North Sea cT 



I' u ill Ihn- In- -,.11 (hat on an <trmi!/<' the (ireenland sea-scor- 

 I""" ha> a comparativelj little greater \\idth of craniuiii hetween Hie eyes 



l'.0 ,. 



155 .. 



1- - 

 <> 



Notes on some (ir-i'nlan.l I'isl 

 \"\. ~. 1884 |.. J.'.n. 



s. I'rocrc.l. U. S. Nat. Mus., 



