96 G. O. Sars. 



Fig. 12. Adult male, viewed from left side; magnified 120 diameters. 



» 13. Same, left antennula, magnified 185 diameters. 



» 14. Same, leg of 1st pair. 



PL VI. 



Macrothrix elegans, G. 0. Sars. 



Fig. 1. Adult ovigerous female, viewed from left side; magnified 80 

 diameters. 



» 2. Same, ventral view. 



» 2a. (Not numbered in the plate) Detached ephippium, viewed 

 from left side. 



» 3. Lower part of head, without the antennæ, viewed from left- 

 side; magnified 130 diameters. 



» 4. Tail, with adjoning part of trunk and last leg, viewed from 

 left side. 



» 5. Left antennula, magnified 235 diameters. 



» 6. Adult male, viewed from right side; magnified 155 diameters. 



> 7. Same, right antennula; magnified 300 diameters. 

 » 8. Same, leg of 1st pair. 



» 9. Same, caudal part, lateral view. 



Macrothrix sqvamosa, G. O. Sars. 

 Fig. 10. Adult ovigerous female, viewed from left side ; magnified 

 155 diameters. 

 » 11. Lower part of head, without the antennæ, viewed from left 



side, more highly magnified. 

 » 12. Tail with adjoining part of trunk and last leg, lateral view. 



Streblocerus pygmæus, G. O. Sars. 



Fig. 13. Adult ovigerous female, viewed from left side ; magnified 200 



diameters. 

 » 14. Same, ventral view. 

 » 15. Head, without the antennæ, viewed f rom left side ; magnified 



300 diameters. 

 i> 16. Eight antennula, isolated. 



> 17. Tail, with adjoining part of trunk, lateral view. 



PL VII. 



Ilyocryptus longireinis, G. O. Sars. 



Fig. 1. Adult ovigerous female, viewed from left side; magnified 

 120 diameters. 



