PLATE X. 



Neastacilla falclandica (Ohlin). 



Pig. 1. — Adult female, lateral view, x 15. 

 Fig. 2.— Kftli thoracic limb, x 25. 

 Fig. 3.— Eighth „ „ x 25. 



Pseudarcturella cMltonl, gen. et sp. nov. 



Fig. 4. — Urosome, lateral view, dorsal side uppermost, uropods omitted, x 33. 



Fig. 5. — Antennule. x 33. 



Fig. 6. — Antenna, x 33. 



Fig. 7. — Second thoracic limb, x 33. 



Fig. 8.— Fifth „ „ x 33. 



Fig. 9.— Eighth „ „ x 33. 



Fig. 10. — First pleopod of the male. X 33. 



Fig. 11. — Second ,, „ „ X 33. 



