Remarks on Myctophum glaciale (Reinh.). Al 
constructed for capturing the swifter pelagic animals in consi- 
derable numbers, but the rich material from these expeditions 
has only partly been published in detail. There remains, however, 
one part of the eastern Atlantic that has not been investigated 
with modern appliances, namely the waters to the south of the 
Gulf Stream, from abt. 45° N. to the Azores and from hence to 
the coast of the Peninsula. This area certainly has been the 
object of several cruises by the late Prince of Monaco but 
owing to the different methods of fishing the results of these 
investigations cannot be freely compared with those of the 
expeditions mentioned above. For the questions here considered 
it is of importance to know, not only if a species is found within 
this area but also to what extent — whether it is a regular 
denizen, with propagation there, or an occasional visitor which 
has found its way thither through active migration from the 
adjacent waters or come as young-fish, with the currents. With 
regard to M. glaciale I have made use of the negative data 
exhibited by the Monaco investigations, partly because I have 
had access to the “M. Sars” material from the adjacent waters, 
partly because I think it probable that the more common species 
of this area may be represented by one or more specimens in 
the Monaco collections. This last assumption should be borne 
in mind during the following considerations as well as the fact 
that the Danish investigations included a series of stations from 
the Irish waters along the coast of the Peninsula to the Medi- 
terranean. 
V. Ege (1918) has given an account of the Stomiatidæ 
(Stomias) collected by the Danish expeditions. He has herein 
reestablished the species Stomias ferox of Reinhardt (originally 
described in 1842 from the waters of W. Greenland) which 
generally has been held as identical to St. boa Risso from the 
Mediterranean. The main differences are demonstrated by Ege 
to be the following: St. boa has 75—78 vertebræ (average 76.687), 
84—86 (av. 84.903) photophores in the ventral row and 58—59 
(av 58.75) in the lateral row, while St. ferox has 79—81 (av. 
80.214) vertebræ, 86—91 (av. 88.224) photophores in the ventral 
and 59—64 (av. 61.133) in the lateral row. The horizontal 
distribution of the two species acc. to the Danish investigations 
are shown in chart II by Ege. St. boa was captured only in 
