of the Fishery Board for Scotland. 153 



Fig. 12. Antennule, female ...... x 780. 



Fig. 13. Antennule, male ....... x 780. 



Fig. 14. First maxilliped, female . . . . x 780. 



Fig. 15. Second maxilliped, female . . . . x 780. 



Fig. 16. Second maxilliped, male . . . . x 780. 



Fig. 17. Foot of ? second pair ...... x 390. 



Sph<eronella minuta, T. Scott. 



Fie. 18. Perioculodes longimanus with the Sphwronella in situ, . . x 22*5. 



PLATE XIII. 



Dyspontius curticaudatua, sp. n. 



Fig. 1. Female, dorsal view . . . . . x 80. 



Fig. 2. Antennule ....... x 263. 



Fig. 3. Antenna ........ x 520. 



Fig. 4. Mandible. ....... x 390. 



Fig. 5. Maxilla ........ x 520. 



Fig. 6. First Maxilliped ...... x 350. 



Fig. 7. Second maxilliped ...... x 280. 



Fig. 8. Foot of first pair . . . ■ . x 187. 



Fig. 9. Foot of third pair ...... x 260. 



Fig. 10. Foot of fourth pair ...... x 260. 



Arcturella dilatata, Sars. 



Fig. 11. Male, dorsal view . . . . . x 20 6. 



Sphceronella vararensis, sp. n. 



Fig. 12. Female, dorsal view . . . . . x 90. 



Fig. 13. Female, side view . . . . . x 120. 



Fig. 14. Antennule ....... x 780. 



Fig. 15. Second maxilliped . . . . . x 780. 



Sphaironella minuta, T. Scott. 

 Fig. 16. Female, with ovisacs ...... 



Sphceronella minuta, var. valida. 



Fig. 17. Female, dorsal view . . . . . x 72. 



Fig. 18. Female, side view . . . . . x 780. 



Fig. 19. Antennule ....... x 780. 



Fig. 20. Second maxilliped ...... x 780. 



