PLATE 6. 



Fig. 1. (?) Thysanopoda cornuta Illig. Young. 



Fig. la. Anterior part of the single young specimen, 14.5 mm. long, from above; X 15. 

 Fig. lb. Peduncle of right antennula, from above; X 31. 



Fig. le. Left maxillula, from below; X 34. 1. first joint; 1'. lobe from first joint; 2. second 

 joint; 3. third joint; P. lobe of third joint; 4. fourth joint or palp; ex. exopod. 

 Fig. Id. Left maxilla, from below; X 34. 1. first joint; ex. exopod. 

 Fig. le. Posterior part of abdomen, from above; X ^. 



Fig. 2. Nyctiphanes simplex H. J. Hansen. 



Fig. 2a. Anterior part of an adult male, from above; X 16. 



Fig. 2b. Left antennula of a male, from the outer side; X 27. 



Fig. 2c. Right antennula of a male, from above; X 26. 



Fig. 2d. Left antennula of an adult female, from the outer side; X 28. 



Fig. 2e. Right antennula of an adult female, from above; X 27. 



Fig. 2f. Left antennula of an immature .specimen, from the outer side; X 28. 



Fig. 2g. Left maxiUula of a female, from below; X 58. 



Fig. 2h. Left copulatory organ, unrolled and seen from behind; X SO. li. inner lobe; Im. median 

 lobe; p^ spine-shaped process; p"". lateral process. 



Fig. 2i. Major distal part of the inner lobe of the same organ, from behind; X 143. 



Fig. 3. Nyctiphanes australis G. O. Sahs. 



Left antennula of the adult male, from the outer side; X 22. 



Right antennula of the same male, from above; X 22. 



Left antennula of the adult female, from the outer side; X 27. 



Right antennula of the same female, from above; X 24. 



Left copulatory organ, mirolled and seen from behind; X 58. Im. median lobe; p*. 



