A REVIEW OF THE MYSIDACEA 175 



PARAMYSIS PARKERI (Norman) 



Schistomysis parkeri Norman, 1892, p. 256, pi. 10, figs. 1-7. 



Occurrence. — Plymouth* (identified by G. E. Bullen). 

 Distribution. — Coast of England. 



Genus PRAUNUS Leach 



Praunus Leach, 1814, p. 401. 



PRAUNUS FLEXUOSUS (O. F. Mnller) 



Synonymy and locality record may be found on page 247. 



PRAUNUS INERMIS (Rathke) 



My sis inermis Rathke, 1843, p. 20. 



Occurrence. — Helgoland*. 



Distribution — Boreal European coasts, White Sea, Faroes, and 

 Spitsbergen. 



Genus MESOPODOPSIS Czerniavsky 



Mesopodopsis Czerniavsky, lS82a, p. 148. 



MESOPODOPSIS SLABBERI (van Beneden) 



Podopsis slaoberi van Beneden, 1861, pp. 18, 142, pi. 7. 



Occurrence. — Helgoland*. 



Distribution. — Atlantic coasts of Europe and off western and south 

 western Africa. 



Genus STILOMYSIS Norman 



Stilomysis Norman, 1892, p. 148. 



Two described species have been referred to this genus. The type 

 species is the well-known S. grandis (Goes) , well described and figured 

 by Sars (1879a). It has a wide distribution, circumpolar in the 

 Arctic regions. The second species is S. camtschatica, described by 

 Marukawa (1928) . The description of this species is very inadequate 

 and it is impossible to form any idea as to its affinities. The type 

 specimens measured only 6 mm., in contrast with the large size to 

 which S. grandis attains, namely 33 mm., and it is doubtful whether 

 it is really a species of Stilomysis at all. It seems much more likely 

 that it is a species of the genus Acanthomysis. A third species, de- 

 scribed below, reaches an even greater size than S. grandis. 



STILOMYSIS GRANDIS (Goes) 



Figure 66 

 Mysis grandis Goes, 1863, p. 176. 

 Mysideis grandis G. O. Sars, 1879a, p. 106, pis. 41-42. — Richters, 1884, p. 406. — 



Rodger, 1895, p. 157. 

 Stilomysis grandis Calman, 1901, p. 24. — Tattersall, 1933, p. 8; 1939b, p. 283. 



Occurrence. — Bering Sea: Albatross stations 2842, 3 males, 2 fe- 

 males, the largest specimen 27 mm., none quite adult; 3325, 1 adult 



