30 



PROTOZOA— RHIZOPODA 



PHYLUM I 



Subfamily ß. Nodosarinae Brady. 



Test either coiled or uniserial, or a modification of one or the other. 



Nodosaria Lam. (Fig. 1 6, B). Test rod-shaped ; Chambers arranged in 

 a linear series and set off from one another by constrictions ; oral aperture 

 round, terminal. Abundant and widelv distributed from Silurian to Recent. 



Fig. 16. 



A, Lagena semistriata Williamson. Antwerp Crag (Pliocene) ; Antwerp. B, Nodosaria spinicosta d'Orb. 

 Tegel (Miocene); Baden, near Vienna. (', Dentalina elegans d'Orh. Same locality. D^Cristellariarotulata'La.m. 

 Scapliiten- Pläner (Turonian) ; Boheniia. E, Va/jinulina recta Reuss. Neoconiian ; Salzgitter, Hanover. F, 

 LinguUna costata d'Orb. Tegel (Miocene) ; Baden, near Vienna. 



Dentalina d'Orb, (Fig. 16, 6'). Like the preceding, but test slightly 

 arcuate. Carboniferous to Recent. 



LinguUna d'Orb. (Fig. 1 6, F). Test rectilinear, compressed ; segments 

 regularly attached; aperture terminal, slit-like. Trias to Recent. 



Glandulina d'Orb. (Fig. 17, A). Test abbreviate, ovate ; segments united 

 in rectilinear series, half embracing one another. General aperture round, 

 terminal, tubiform. Trias to Recent. 



Faginulina d'Orb. (Fig. 16, E). Test rectilinear, laterally compressed; 

 segments flattened, with obliquely directed septa. Trias to Recent. 



Margin ulina 

 d'Orb. Early portion 

 arched or helicoid, 

 later segments recti- 

 linear. Terminal 

 aperture slit - like. 

 Trias to Recent. 



Cristellaria Lam. 

 (Fig. 16, D). Test 

 regularly planospiral, 

 with convolutions 

 completely envelop- 

 ing one another. Ter- 

 minal aperture round. 

 Trias to Recent. 

 Frondicularia Defr. (Fig. 1 7, D). Test extremely compressed and foliately 

 expanded in a single plane; Chambers r^flexed and laterally embracing one 

 another. Terminal aperture round. Trias to Recent. 



Ä, Glandulina inflata Boruem. Septarienthon (Oligocene) ; Hennsdorf. 

 B, Polymorphina inflata Williamson. Recent ; German Ocean. C, Dimorphina 

 sp. Pliocene ; Sienna, Italy. D, Frondicularia goldfussi Reuss. Scaphiten- 

 Pläner ; Dülmen, Westphalia. E, Uvigerina p'ygmaea d'Orb. Tegel (Miocene) ; 

 Baden, near Vienna. 



