466 G. 0. 



Farn. 4. Leuconidœ. 

 Gen. 10. Leucon, Kröyer. 



— 11. Eudorella, Norman. 



Fam. 5. Diastylidæ 



— 12. Diastylis, Say. 



— 13. Leptostylis, G. 0. Sars. 



Fam. 6. Pseudocumidœ. 



— 14. Pseudocoma, G. 0. Sars. 



— 15. Petalopus, G. 0.- Sars. 



Fam 7. Campylaspidœ. 



— 16. Campylaspis, G. 0. Sars. 



Fam. 8. Cumellidœ 



— 17. Cumella, G. 0. Sars. 



— 18. Nannastacus, Sp. Bate. 



Genera incertœ sedis. 

 Gen. Strauchia, Czernikowski, 

 Olbia, Marcussen. 



— Chalarostylis, Norman. 



— Spencebatea, Norman. 



Genera spuria: 

 Condylura, Lamk. = Diastylis, Say. 

 Bodotria, Goodsir = Cuma, Edw. (mas adult). 

 Alauna, Goodsir = Diastylis, Say. 

 Eudora, Sp. Bate = Eudorella, Norm. 

 Halia, Sp. Bate = Iphinoë, Sp. Bate. 



