Manchester Memoirs, Vol. Ixii. (19 17) ix. 



munication with Liebus, and supplied him not only with material, 

 but with notes and drawings, but we have found no trace of 

 the correspondence among the Halkyard papers. Liebus admits 

 his indebtedness to Halkyard for the material and topographical 

 information, and figures several unimportant species, but gives, 

 with perhaps one exception, no indication of any of Halkyard's 

 new species. He gives a list of 125 species, 66 of which are 

 not recorded by Halkyard, whilst Halkyard's paper records 288 

 species not recorded by Liebus. In our opinion Liebus' paper 

 is of no importance in the light of the publication of the present 

 monograph. 



We have combined Halkyard's record of species and our 

 own, for purposes of reference, in an Alphabetical Index of 

 Genera and species to which the systematist is referred as an 

 essential part of the present publication. The plan is an 

 unsatisfactory one from many aspects, but it was the only way 

 in which we could place before the student of the Foraminifera 

 the combined results of Halkyard's work and our own, as a 

 complete record of the species identified by him and by us in the 

 material at our command. 



H-A. & E. 



