20 
The most noteworthy fact connected with the above assemblage is, 
perhaps, the preponderance of arenaceous and sub-arenaceous forms. As in 
common with other Palaeozoic foraminiferal faunas, there is also associated 
with them a large proportion of hyaline forms of the family Lagenida. 
True rotaline forms seem usually to he rare until we reach Mesozoic strata. 
Another striking feature in this assemblage is the enormous abundance, in 
certain specimens of rock, of the porcellanous foraminifer, Nubecularia. 
Some of the above species were common to both the northern and 
southern hemispheres in Upper Palaeozoic times, as Hyper cimmina vagans, 
Haplophragmium agglutinans , Ammodiscus incertus, A. anceps, Endothyra 
bowmani , E. macella, Valvulina bulloides, Nodosaria permiana , N. bradyi , 
N. labiata, Geinitzina postcarbonica, and Lunucammina permiana. 
Another feature of especial interest is the occurrence of the genera 
lately described by Spandel from beds of similar age in Germany and North 
America, namely, Monogenerina, Geinitzina, and Lunucammina , which are 
apparently confined to strata of this particular age. 
Nine of the above species appear to he new; they are, — Felosina 
hemisphcerica, Haplophragmium pokolbiense, Placopsilina tenuitesta, Lituola 
cristellarioides, Staclieia simulans , Monogenerina pyramidis,? Pleurostomella 
antiqua, Geinitzina triangularis, and Anomalina supracarbonica. 
