of the Fishery Board for Scotland. 



257 



Canthocamptus hirticornis, n. sp. 



Fig. 13. Female — lateral view, . . . x 106 diameters. 



Fig. 14. Antennule — female, ..... x 506 „ 



Fig. 15. Antennule — male, ..... x 506 ,, 



Fig. 16. Antenna, ...... x 506 ,, 



Fig. 17. Mandible and palp, . . . . x 760 



Fig. 18. Maxilla, . . . . . x 760 „ 



Fig. 19. Anterior foot-jaw, ..... x 760 „ 



Fig. 20. Posterior foot-jaw, ..... x 760 ,, 



Fig. 21. Foot of first pair of swimming feet, . x 380 ,, 



Fig. 22. Foot of fourth pair, . . . , x 253 „ 



Fig. 23. Foot of third pair— male, . . . x 506 „ 



Fig. 24. Foot of fifth pair— female, . . . x 506 



Fig. 25. Foot of fifth pair— male, . . . x 760 



Fig. 26. Last abdominal segments and caudal stylets, . x 190 „ 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



Plate X. 



Ophiocamptus hrevipes (G. O. Sars). 



Female — lateral view, 

 Antennule — female, t 

 Antenna, 



Mandible and palp, . 

 Posterior foot-jaw, 

 Foot of first pair of swimming feet, 

 Foot of fourth pair, . 

 Foot of fifth pair, 



Last abdominal segments and caudal stylets 



X 



106 diameters. 



X 



506 



11 



X 



760 



»i 



X 



760 



>> 



X 



760 



ii 



X 



760 



i) 



X 



380 



Ik 



X 



760 



ii 



X 



190 



>i 



Cladocera. 



Fig. 



Fig. 



Fig. 



Fig. 

 Fig. 

 Fig. 



Fig. 

 Fig. 



Fig. 

 Fig- 

 Fig. 



Fig. 

 Fig. 



Fig. 

 Fig. 

 Fig. 



10. Ceriodaphnia reticulata (Jurine), post-abdomen, 



11. Ceriodaphnia (?) laticaudata, P. E. Muller, lateral 



view (from Possil Marsh), . . . . 



12. ,, „ portion of test highly 

 magnified. 



13. post-abdomen, . 



14. ,, ,, antenna, 

 lateral view (from Bardowie 



15. Ceriodaphnia, sp. A 



Loch), 

 16. 

 17. 



dowa, North 



sp. b, 

 Uist), 



19. 



20. Daphnia Jardinii, 

 German's Loch), 



20A. 



locality), 



21. 



22. Bosmina longicornis 



Barra), 



23. f t „ 

 24. 



25. 



antennule, 



Fost-abdomen, . 

 view (from Loch Sea 



post-abdomen, . 

 Baird, lateral view (from St. 



(another form from the same 



post-abdomen, . 

 (Muller), lateral view, (from 



(a small form from N. Uist) 

 post-abdomen (large form), 

 post-abdomen (small form), 



x 200 diameters. 



x 63 



x 133 



x 66 



x 46 



x 133 



x 133 



x 63 



x 133 



x 46 



x 46 



x 133 



x 48 



x 95 



X 133 



x 300 



