BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 26. AFD. J V. N:0 12. 27 



same as in the Siberian Sea, or in the North American Polar 

 Arcliipelago. But in the cold area l)etween Spitzbergen and 

 Greenland one cannot expect to find the tvpical Cli. Sahini 

 which, like Ch. cntomon, nmst he regarded as a form living 

 exclusively in shallow water. But here, its place is occupied 

 by Ch. nief/((li(ra, whose living in the abyssal depths may ae- 

 count for that it had Ijeen developed to a speeiiic form. 

 Hitherto, it bas only been obtained in that deep l)assin ex- 

 tending as far sonth as the snbmarine ridge between Jceland, 

 Fjeröe Isles, and Shetland Isles, and continuing northwards, 

 probal)!}' to the Pole itself. by waj^ of Nansen's deep Arctic 

 bassin. 



Length of greatest niale 56 mm. 



breadth > >.■ 13 



length female with marsnpinm and eggs 49 



breadth lo 



Syiiidothea Harueu 1878. 



Synidothea bicuspida (OWEN). 

 Fig. f)a— b. 



183'.i. Idotea bicuspida OWEN, Crustacoa, in Cai)t. l)EECifEY's Voya^% 



1>. 92, pl. 27, fig. (! (in fide Haruer). 

 1874. :. rugulosa BUGIIHOLZ, Crustacea 1. c. p. 285, noto. 



1880. Synidotea bicuspida Harger, Mar. Isop. of New England, 1. c. 



p. 352. 

 1880. incisa G. O. Sars, Crust. et Pyciuigon. nova, etc, 



1. c. p. 433. 

 18S3. Edotia bicuspida MiERS. Revis. of the Idoteidie etc, 1. c, p. 66. 

 1885. Synidotea bicus]tida G. O. Sars, Xorske Nordhavsexj). 1, }>. 116, 



pl. 10 figg. 24— 2G. 



This beautiful and easily recognizable species was ob- 

 tained during the expedition of 1898 at the following stations: 



stat. 6. lat. 76° 45' N.. long. 26 E., Hope Island, dei)th 40 m., 



rocks, 22 VI., abundant. 

 » 7. lat. 77 25' N., b)ng. 27 30' E., N. of Hope Islaiul, deptii 



160 III., bottoui tenii». — l,7i C, yellowish-brown olay, 



23, VI, 2 spec. ($ ovigerous.) 

 » 10. lat. 77 9' N., long. 14 40' E., fitf loe Islands, West Spitz- 



l)ergen, dejttli 90 in., soft, grav clay, 27 VI, 5 spec. 

 » 30. King Charles Island, Swedish Forelaud. depth 10 — 16 m., 



fine, black-grayisb sand, pel)bles, clay and algas, not scarce. 



