PLATE 2. 



Fig. 1. Boreomysis fragilis, sp. nov. 

 Fig. la. Telson and left uropod of the same male, from above; X 22. 



Fig. 2. Hemisiriella abbreviata, sp. nov. 



Fig. 2a. Anterior part of an adult female, from above; X 33. 



Fig. 2b. Po,sterior part of sixth aljdominal segment with left uropod and telson of tlie same 

 female, from above; X 33. 



Fig. 2c. Telson of the same specimen, from above; X 51. 



Fig. 3. Gastrosaccus pacificus, sp. nov. 



Fig. 3a. Anterior part of an adult female, from above, X 34. 



Fig. 3b. First right pleopod of an adult male, from behind; X 45. 



Fig. 3c. Second right pleopod of the same male, from behind; X 45. 



Fig. 3d. Third right pleopod of the same male, from behind; X 45. The distal part of the 

 e,\'opod wanting. 



Fig. 3e. Fourth right [ileopod of the same male, from behind; X 45. 



Fig. 3f. Fifth right pleopod of tlie same male, from behind; X 45. 



Fig. 3g. Telson and right uropod of an adult female, from above; X 46. 



Fig. 4. Anchialina obtusifrons, sp. nov. 



Fig. 4a. Anterior part of an adult male, from above; X 20. 



Fig. 4b. Left gnathopod of the same male, from behind; X 33. 



Fig. 4c. Distal part of the exopod of third right male pleopod, from in front; X 186. a. tlie 

 lamellar process; b. joint bearing the terminal processes; c. outer very long process, with its secondary 

 branch c'.; d. median ramified terminal process; e. inner terminal process. 



Fig. 5. Euchaetomera typica G. O. Sars. 



Fig. 5a. Median and left part of the anterior margin of the carapace of an ovigerous female, 



from above; X 48. 



Fig. 5b. Right eye of the same female, from above; X 52. 



Fig. 5c. Proximal part of right antenna with the squama of the same female, from above; X 23. 



Fig. 5d. Distal part of fourth left leg of the same female, from in front; X 35. 



Fig. 5e. End of sixth abdominal segment with telson and left uropod of the same female, from 

 above; X 22. 



