374 PROTOZOOLOGY 



Genus Triplagia (Fig. 171, b) 





Fig. 171. a, Cystidium princeps, Xl20; b, Triplagia primordialis, 

 X25; c, Lithocircus niagnificus, XlOO; d, Dictyophiinus hertwigi,XSO 

 (Haeckel from Kiihn). 



Skeleton a simple or multiple sagittal ring 



Family 2 Stephoidae 



Genus Lithocircus (Fig. 171, c) 



With a complete latticed skeleton Legion 3 Cyrtellaria 



Lattice skeleton single, without constriction 



Family 1 Cyrtoidae 



Genus Dictyophimus (Fig. 171, d) 

 Lattice skeleton multiple Family 2 Botryoidae 



Genus Phormobothrys 



Suborder 4 Triplylea Hertwig 



Without skeleton; with isolated spicules. . . .Legion 1 Phaeocystina 



Skeleton consists of radial hollow rods and fine tangential needles 



Family 1 Aulacanthidae 



Genus Aulacantha (Fig. 172, a) 



With foreign skeleton covering body surface 



Family 2 Caementellidae 



Genus Caementella (Fig. 172, 6) 



With skeleton 



1-2 (concentric) usually spherical skeletons 



Legion 2 Phaeosphaeria 



Outer lattice skeleton with triangular or areolar meshes 



Family 1 Sagosphaeridae 



Genus Sagenoscene 



