250 



Page 122. Add the following species: 



Maerostylis longiremis (Meinert). 



(Suppl. PI. II, fig. 1). 



Vana longiremis, Meinert, Crustacea malacostraca (from the cruise of the steamer „Hauch"), 



p. 195, PI. H, figs. 63—73. 



Specific Characters. — Very like M. spinifera, but, on a closer examination, 

 easily distinguishable by the somewhat different shape of the caudal segment, which 

 is not nearly so much nroduced at the end, between the insertion of the uropoda. 

 The 3rd pair of legs with the ischial spine less curved, and distinctly bidentate at 

 the tip. The 3 posterior pairs of legs comparatively less slender than in the 

 type species. Uropoda not attaining the length of the caudal segment, and having 

 the distal joint nearly half as long as the proximal one. Length of adult female 

 2 1 / i mm. 



Remarks. — It is Dr. Hansen who has called my attention to the fact 

 that the form described by Prof. Meinert as Yana longiremis does not exactly 

 agree with Maerostylis spinifera, to which I have formerly adduced it as a syno- 

 nym. Through the kindness of that distinguished zoologist, I have received several 

 specimens of the Danish form, and a closer examination of these has indeed 

 convinced me that it ought to be regarded as a distinct, though very closely 

 allied species. The differences between the 2 species may be easily seen on a 

 comparison of the figures given on the accompanying plate, with those on PI. 51. 



Occurrence. — This species has certainly not yet been found off the Nor- 

 wegian coast; but as it occurred rather frequently in one Station (460) lying in 

 the Skagerak at rather a long distance north of Skagen, it may with almost equal 

 right be referred to the Norwegian fauna as to the Danish. In all probability 

 it will, on a closer investigation, be found to exist off the coasts of both countries. 



Page 127. Add another species: 



Desmosoma angustum, Hansen, MS. 



(Suppl. PI. H, fig. 2, PI. IV, fig. 2). 



Specific Characters. — Body of female very slender and narrow, being more 

 than 6 times as long as it is broad, and somewhat moniliform, with the segments 

 sharply marked of from each other. Cephalon of moderate size, distinctly notched 



