PLATE IV. 



Figs. 1-8. Stenetridm haswelli. 



Fig. 1. Male, dorsal view. 



Fig. 2. Antennule. 



Fig. 3. Basal joints of antenna. 



Fig. 4. One of the first pair of thoracic appendages. 



Fig. 5. Rudimentary exopodite of antenna. 



Fig. 6. First pair of abdominal limbs. 



Fig. 7. One of the second pair of abdominal limbs. 



Fig. 8. Uropod. 



Figs. 9-14. IOLANTHE ACANTHONOTUS. 



Fia;. 9. Female, dorsal view. 



Fig. 10. Antennule. 



Fig. 11. Maxillipede. 



Fig. 12. Distal extremity of one of the thoracic limbs. 



Fig. 13. Uropod. 



Fig. 14. Exopodite and endopoclite of uropod ; more highly magnified. 



