119 



Part lit. — Twenty-third Annual Report 



Dichelestium sturionis, Hermann. 



Fig. 17. Antennule, female 



Fig. 18. Antenna, female . 



Fig. 19. Antenna, male . 



Fig. 20. Mandible 



Fig. 21. Maxilla . 



Fig. 22. First maxilliped, female 



Fig. 23. Second maxilliped, female 



Fig. 24. Foot of fourth pair, female 



X 



46 



X 



17 



X 



17. 



X 



60. 



X 



46. 



X 



23 



X 



15. 



X 



28. 



PLATE VI. 



Dichelestium sturionis, Herm. 



Fig. 1. Female, dorsal view 



Fig. 2. Male, dorsal view 



Fig. 3. Foot of first pair, female 



Fig. 4. Foot of second pair, female 



Fig. 5. Foot of second pair, male 



Fig. 6. Foot of fourth pair, male 



46. 

 46. 



46. 



46. 



46. 



24. 



Chondracanthus depressus, sp. n. 



Fig. 7. Female, dorsal view 



Fig. 8. Posterior appendages of same 



Fig. 9. Antennule 



Fig. 10. Mandible. ' . 



Fig. 11. First maxilliped . 



Fig. 12. Foot of first pair 



Fig. 13. Foot of second pair 



Chondracanthus depressus, var. oblongus. 



Fig. 

 Fig. 

 Fig. 

 Fig- 



Female, dorsal view 

 Antennule 

 Foot of first pair 

 Foot of second pair 



Lemece lusci, Bassett-Smith. 



Fig. 18. Gadus lucus with parasite in situ 



Trematoda. 



Fig. 19. Phyllocotyle gurnardi, v. Ben. and Hesse 



Fig. 20. Extremity of peduncle of the same 



Fig. 21. Microcotyle donavani, v. Ben. and Hesse 



Fig. 22. The same — one of the posterior suckers 



Fig. 23. Microcotyle labracis, v. Ben. and Hesse 



Fig. 24. Diplectanum wquans, Diesing . 



Diam. 

 x 12. 

 enlarged, 

 x 60. 

 x 260. 

 x 260. 

 x 55. 

 x 55. 



x 12. 



x 60. 



x 55. 



x 55. 



reduced 







X 



45 







X 



260. 







X 



27. 







X 



390. 







X 



18. 







X 



45. 



