new ami rorc f^rustacea from Scotland. 140 



to tliP question of ]M-i()rlty, we find tliat the ' Tenth 

 Animal Keport of the Fishery Board tor Scotland,' in which 

 Stevhos is described, was published on September 22nd, 1892, 

 and that Dr. Giesbrecht's work on the Pelagic Copepoda of 

 the Gulf of Naples, in which Mohianus is described, and 

 which bears the date 1892, was published on January 2()tli, 

 1893. 



EXPLANATION OF THE PLATES. 



Plate VIII. 



Amymone nigrons, sp. n. 



Fig. 1. Male, seen from the side, X 80. 2. Anterior antenna, female, 

 X liK). 3. Mandible and palp, x ^I'^O. 4. Foot of tliird pair, 

 X 170. 5. Foot of fourth pair, x 170. (>. Foot of fifth pair, 

 female, X 253. 7, Foot of hl'tli pair, male, X 190. 



Stenhelia dispar, sp. u. 



Fig. 8. Female, seen from the side, x 70. 9. Anterior antenna, female, 

 X 380. 10. Foot of tirst pair, x 190. IL Foot of fourth pair, 

 X 127. 12. Foot of tifth pair, female, X 253. 



Cletoiks irrasci, sp. u. 



/'///. 13. Female, seen from above, x 70. 14. Anterior antenna, femal', 

 X 253. lo. Foot of first pair, x 506. l(i. Foot of fourth 

 pair, X 506. 17. Foot of fifth pair, female, x 380. 



Ameira exilis, sp. n. 



Fig. 18. Female, seen from the side, x 36. 19. Foot of fiftli pair, 

 female, x 127. 20. Abdomen and caudal stylets, x 40. 



Plate IX. 



Ameira e.rilis, sp. n. 



Fig. 1. Anterior antenna, female, x 100. 2. Foot of first pair, x 127. 

 3. Foot of third pair, male, x 64. 



Thalestris forjiculoides, sp. n. 



Fig. 4. Female, seen from the side, X 54. 6. Anterior antenna, female, 

 X 190. 6. Foot of tirst pair, x 190. 7. Foot of third pair, 

 male, X 127. 8. Foot of fifth pair, female, x 127. 9. Abdo- 

 men and caudal stylets, X 53. 



Derinatomyzon gihherum, sp. n. 



Fig. 10. Female, seen from above, x 80. 11. Anterior antenna, x 253. 

 12. Mandible, X 304. 13. Maxilla, x 304. 14. Foot of fifth 

 pair, X 253. 



Acontioji/wrus elongatus, sp. n. 



Fig. 15. Female, seen fi-om above, X 48. 16. Anterior antenna, x 190. 

 17. Mandible, x 152. 18. Siphon, x 152. 19. Foot of fourth 

 pair, X 127. 20. Foot of fifth pair, x 253. 



