PLATE XXYIII. 



Nyctiphancs austrcdis, G. 0. Sars. 



(Early larval stages.) 



Fig. 1. Larva iu Mctauauplius stage, from above ; highly magnified. 



Fio-. 2. Same, from left side. 



Fig. 3. Same, from below, more strongly magnified, exhibiting the budding limbs 

 behind the anterior lip. 



Fig. 4. Larva in first Calyptopis stage, from right side ; highly magnified. 



Fig. 5. Same, from above. 



Fig. 6. Same, from below ; more strongly magnified. 



Fig. 7. Anterior prominence of ocular segment, with the ocellus. 



Fio;. 8. One of the antennulse. 



Fifi'. 9. One of the antennaj. 



Fig. 10. Anterior lip and mandibles. 



Fig. 11. Posterior lip. 



Fig. 12. Mandible. 



Fig. 13. Cutting edge of left mandible. 



Fig. 14. Cutting edge of right mandible. 



Fig. 15. AppendiL-ular plate of cutting edge. 



Fig. 16. Maxilla of first pair. 



Fig. 17. Maxilla of second pair. 



Fig. 18. Maxilliped. 



Fig. 19. Extremity of tail, from below. 



Fig. 20. Larva in second Caly|3topis stage, from left side ; highly magnified. 



Fig. 21. One of the autennulse. 



Fig. 22. Extremity of tail, from below. 



Fig. 23. Larva in last Calyptopis stage, from right side ; highly magnified. 



Fig. 24. Left antennulae, from above. 



Fig. 25. Maxilla of first pair. 



Fig. 26. Extremity of tail, with telson and uropoda, from below. 



