1898 —1902. No. 25.] FISHES. 7 
than the European sea-scorpion, this width in the former being fre- 
quently equal to length of the eye, or at any rate’ not less than 3/, of 
it, whereas the width in the latter is always — that is to say, in the 
specimens examined — less than the length of the eye, at the most - 
%/io of it, and may be as little as 7/12, or not much more than_ half. 
There is not, however, any distinct boundary that separates the two 
forms. 
In speaking of the dorsal fin, Dresel says that in C. grenlandicus 
the spine-rayed dorsal fin was comparatively higher, the longest ray 
being +/, or /, of the total length (measured to the base of the caudal 
fin), while in C. scorpius it is no more than 1/; or %, of the same 
length. An error must have found its way in here; for if we look at 
Dresel’s measurements of the Greenland specimens, we find that the 
longest “dorsal spine” goes respectively 6, 8, 61/2, 7, and 5/, times into 
the total length (to the base of the caudal fin). In order to judge of 
this myself, I have measured the same specimens as before, and will 
here give the result. The “total length” is to the base of the caudal fin. 
C. scorpius, from Greenland. 
Total length Sex The longest ray The longest ray 
in D! in D2 
is contained in the | is contained in the 
“total length” “total length” 
256 mm. fot 5.6 4.9 
952 Q 6.6 5.7 
240 ie) 7.6 5.8 
932, oe 5.7 Bl 
230 4 Q 7.2 5.7 
15 Oo 5 5.8 
193, 2 6.8 5.8 
180, on 6.1 5A 
C. scorpius, from Europe. Locality: 
230 mm Q 6.5 6.1 The Sound 
930, Q 7 6.4 Upper Baltic 
296 4 Q 7 5.8 Faroe Isles 
213 e 13 6.1 The Sound 
2 , Q 72 52 North Sea 
190, of 6.2 5.1 Upper Baltic 
155, fot 7 6.4 Faroe Isles 
155, ou 6.3 5.6 North Sea 
