354 



PROTOZOOLOGY 



Fig/162. a, Calcarina defrancei, X25 (Brady) ; b, Halkyardia radiata 

 Xl5 (Cushman); c, Cassidulina laevigata, X25 (Brady); d, Allo- 

 morphina trigona, X40 (Brady); e, Globigerina bulloides, X30 (Kiihn); 

 f, Anomalina punctulata (d'Orbigny); g, Rupertia stabilis, x50 

 (Brady). 



Mostly attached, dorsal side usually flattened; fossil and recent 

 Family 40 Anomalinidae 



Genus Anomalina d'Orbigny (Fig. 162, /) 



Later chambers in annular series; fossil and recent 



Family 41 Planorbulinidae 



Genus Planorbulina d'Orbigny 



Test trochoid in very young, later growing upward 



Later chambers in a loose spiral; fossil and recent 



Family 42 Rupertiidae 



Genus Rupertia Wallich (Fig. 162, g) 



Later chambers in masses or branching, highly colored ; mostly 

 recent, also fossil Family 43 Homotremidae 



Genus Homotrema Hickson 



Test trochoid in the very young of microspheric form, chambers 

 becoming annular later, with definite equatorial and lateral 



chambers, often with pillars; fossil only 



Family 44 Orbitoididae 



Genus Orbitoides d'Orbigny 



