of the Fishery Board for Scotland. 



269 



Tachidius crassicomis, nov. sp, 



Fig. 14. Female, lateral view, 



Fig. 15. Male and female — lateral view, 



Fig. 16. Anterior antenna — female, 



Fig. 17. Anterior antenna — male, 



Fig. 18. Posterior antenna, 



Fig. 19. Mandible and palp, 



Fig. 20. Maxilla, 



Fig. 21. Anterior foot-jaw, 



Fig. 22. Posterior foot-jaw, 



Fig. 23. Foot of first pair, 



Fig. 24. Fifth pair of feet — female (minus lateral seta on one side), 



Fig. 25. Foot of fifth pair, male, 



Fig. 26. Appendage to first abdominal segment — male 



Fig. 27. Last abdominal segment and caudal stylets, 



magnified 80 diameters. 

 80 „ 



380 



380 



380 „ 



500 



500 



760 



500 



380 



500 ,, 

 1000 „ 

 1000 „ 



190 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 8. 

 Fig. 9. 

 Fig. 10. 

 Fig. 11. 

 Fig. 12. 

 Fig. 13. 

 Fig. 14. 

 Fig. 15. 

 Fig. 16. 

 Fig. 17. 

 Fig. 18. 



Plate IX. 

 Ameira longicaudata, nov. sp. 



Female, lateral view, 



Anterior antenna, female, 



Anterior antenna, male, 



Posterior antenna, 



Mandible and palp, 



Maxilla 



Anterior foot-jaw, 



Posterior foot-jaw, 



Foot of first pair, 



Foot of third pair, 



Foot of fourth pair, 



Foot of fifth pair — female, 



Foot of fifth pair — male, 



Appendage of first abdominal segment — male, 



Part of abdomen, and caudal stylets, 



Posterior margin of abdominal segment 



Female, lateral view — variety, . 



One of the abdominal segments — variety, 



Tetragoniceps bradyi, nov. sp 



Fig. 19. Female, lateral view, 



Fig. 20. Anterior antenna, 



Fig. 21. Posterior antenna, 



Fig. 22. Mandible and palp, 



Fig. 23. Maxilla, 



Fig. 24. ? Mouth, 



Fig. 25. Anterior foot-jaw, 



Fig. 26. Posterior foot-jaw, 



Fig. 27. Foot of first pair, 



Fig. 28. Foot of third pair, 



Fig. 29. Foot of fourth pair, 



Fig. 30. Foot of fifth pair, 



Fig. 31. Abdomen and caudal stylets 



Fig. 32. One of the caudal stylets 



magnified 53 diameters 



„ 126 „ 



„ 126 „ 



,, 190 „ 



„ 380 



„ 380 



„ 380 



„ 400 „ 



„ 190 



„ 190 „ 



., 126 „ 



„ 250 



,, 250 



,, 250 _„ 



»j "5 ,, 



„ 380 



>> 53 ,, 



„ 190 



magnified 80 diameters. 



„ 250 „ 



n 190 



„ 250 „ 



„ 380 



„ 190 „ 



,, 380 



,, 380 



„ 190 



ii 190 „ 



„ 190 „ 



„ 190 

 90 



,, 250 



f/ct+Ujcl 



Plate X. 

 littoralis, nov. sp. $ 



/ 



Fig. 



1. 



Fig. 



2. 



Fig. 



3. 



Fig. 



4. 



Fig. 



5. 



Fig. 



6. 



Fig. 



7. 



Fig. 



8. 



Fig. 



9. 



c& 



1. Anterior antenna, 

 Posterior antenna, 



Mandible, .... 



Maxilla. 4 a. Anterior foot-jaw, 

 Posterior foot-jaw, 



Foot of first pair (inner branch minus last joint), 

 Foot of fourth pair, 

 Foot of fifth pair, 

 Abdomen and caudal stylets 



f . 



magnified 126 diameters. 



,, 126 „ 



190 



190 



190 „ 

 126 „ 

 126 „ 

 280 

 190 



