PYCNOGONIDA. 



6 9 



Fig. 20: The same, from below. 



d. The proboscis; e. ganglionic mass for the embryonal legs. The other letters as in the 

 preceding figure. 



— 21: The same, lateral view. 



The letters as in fig. 19. 



Fig. 22 — 24. Paranymphon spinipes Canll. ') 



Fig. 22 : Larva of the first stage, dorsal view. 

 The letters as in fig. 20. 

 - 23: The same, from below. 

 The letters as in fig. 20. 



— 24: The same, lateral view. 



By a pressure of the covering glass the yolk-mass has been forced out into the first joint 

 of the right cheliforus, and has distended this joint; the claws of the embryonal legs have 

 also been curved by the same pressure. 



Fig. 25 — 27. Zetes hispidus Kr. 



Fig. 25 : Larva of the first stage, in the egg-shell, lateral view. 



a. Cheliforus; b. the first embryonal leg; c. the second embryonal leg; d. the proboscis; e. 

 egg-shell. 



— 26: Fore end of the same, more enlarged, lateral view. 



a. Cheliforus; a', duct of the byssus-gland ; b. first embryonal leg; c. second embryonal leg; 

 d. proboscis; e. egg-shell. 



— 27: Larva of the first stage, dorsal view. 



The letters as in the preceding figure. 



Tab. III. 



Fig. 1- 



-6. Nymphon Sarsii n. sp. 



3 times enlarged. 



Fig;. 1 : Full figure, dorsal view. 



The same, lateral view; all limbs removed. 6 times enlarged. 



A cheliforus. 



The outermost joints of the palps. 



The outermost joints of the ovigerous legs. 



The two joints of the foot with claw and auxiliary claws. 



Fig. 7 — 13. Nymphon Hoekii 11. sp. 



Fig. 7 : Full figure, dorsal view. 3 times enlarged. 



8: The same, lateral view; all limbs removed. 6 times enlarged. 



— 9: A cheliforus. 



— 10: The outermost joints of the palps. 



- 11: The outermost joints of the ovigerous legs. 



— 12: The claw of the ovigerous legs. 



13: The two joints of the foot with claw and auxiliary claws. 



M The specific name of spinipes here in this plate is an error for spinositm. 



