158 THE FOEAMINIFEEA 



Caucasus, and Indiana. Carboniferous. (Plate 8, 

 figs. L, /.) 



The sub-genus Bradi/iini, Moller, is distinguished 

 from E}irlot]n/ra (t/jjnca) in having a crescentic series 

 of pores on the septal face of the last chamber, as 

 well as a series of pores in the septal depressions of 

 the shell. 



Example. — Brachjina nautiliforims,M6\leY, ' Mem. 

 Ac. Imp. Sci. St.-Petersbourg,' ser. 7, vol. xxv. No. 9, 

 1878, p. 83, pi. iii. figs. 4a-d ; pi. x. fig. 3a, b. Car- 

 boniferous. 



The sub-genus C r ih r ospir a, '^IoWqy, is distinguished 

 by the cribrate orifices on the septal face of the 

 shell. 



Example. — Crihrospira, Pander i, MoUer, ibid. 

 1878, p. 87, pi. iv. figs, la-c ; pi. x. figs, la, b. Car- 

 boniferous. 



Sub-famihi 4. Loftusiin^e. 



Test of relatively large size ; lenticular, spherical 

 or fusiform ; constructed either on a spiral plan or 

 in concentric layers, the chamber cavities occupied 

 to a large extent by the excessive development of 

 the finely arenaceous cancellated walls. 



Genus Cyclaminina, Beady. 



Test spiral, nautiloid ; lenticular or subglobular ; 

 smooth externally ; chambers numerous, involute. 

 Pliocene and Pecent. 



Example. — C. cancellata, Brady, ' Quart. Journ. 



