6 G. O. Sars. 



5. Alona costata, G. O. Sars. 



6. Chydorus sphœriciis (Müll.). 



COPEPODA. 



7. Diaptomiis Chaffonjoni, Rich. 



8. Cyclops affinis, G. O. Sars. 



OSTRACODA. 



9. Cypris vittata, G. O. Sars, n. sp. 



10. — decorata, G. O. Sars, n. sp. 



11. Pionocypris turgida, G. O. Sars. 



12. Cypridopsis vidua (Müll.). 



13. Dolerocypris sinensis, G. O. Sars, n. sp. 



17. Ilyocypris dentifera, G. O. Sars, n. sp. 



18. — angulata, G. O. Sars, n. sp. 



By a comparison of the 2 above given lists, it will be 

 found that only 2 species are common to both localities, 

 viz., Chydorus sphœricus and Pionocypris turgida; otherwise 

 the species from China are different from those from Su- 

 matra. This apparent diversity may, however, in all pro- 

 bability be due to quite accidental circumstances. 



PHYLLOFODA. 



FAM. LIMNADIIDÆ^. 



1. Limnadla leuticularis (Lin.). 



(PI. T, figs. 1, 1 a). 

 Two specimens of a Limnadia, undistinguishable from 

 the European form, developed in one of my aquaria pre- 

 pared with mud from Sumatra, and both arrived to full 



