[ 341 ] 



IV. On New or Rare Crustacea of the Order Cumacea from the Collection of the 

 Co2)enhao^n^Iuseum. — Part II. The Families Nannastacidae and Diastylidae. 

 Uy W. r. Calman, D.Sc, F.Z.S., British Museum {Natural History) *. 



(Keceived November 15, 1909; read January IS, 1910.) 



[Plates XXXII.-XXXVII.] 



In this, the second and concluding part f of a report on Cumacea from the Zoological 

 Museum of Copenhagen, twenty-nine species are dealt with, all except two of which 

 are regarded as new, and three new genera are established. As in the case of the 

 specimens dealt with in Part I., the authorities of the Copenhagen Museum have 

 courteously allowed a selection of those here described to be retained for the British 

 Museum. 



List of the Species dealt loith in this Paper. 

 Family Nannastacid.e. 



* Published by permission of the Trustees of the British Museum, 

 t For Part I., see Trans. Zool. Soc. xviii. pt. i. No. 1 (1907). 



VOL. XVIII.— I'AUT IV. No. 1. — February, 1911. 3 A 



