260 



HANDBOOK OF PROTOZOOLOGY 



Genus Orosphaera 



Solitary; skeleton highly developed and complex; often concentric; small 



spherical Legion 2 Sphaerellaria 



Central capsule and skeleton spherical Family 1 Sphaeroidae 



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-To 





Fig. 104 a. Lampoxanthium pandora. X20 (After Haeckel). 



b. Thalassicolla nucleata. X16 (After Huth) (From Kiihn). 



Genus Hexacontium (Fig. 105, a) 

 Central capsule and skeleton elliptical or cylindrical. .Family 2 Prunoidae 



Genus Pipetta (Fig. 105, b) 

 Central capsule and skeleton discoidal or lenticular. . . .Family 3 Discoidae 



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Fig. 105 a. Hexacontium asteracanthion. X130. 



b. Pipetta tuba. XIOO. 



c. Staurocyclia phacostaiirus. X130. 



d. Cenolarus primordialis. XIOO. 



e. Sphaerozoum ovodimare. y.ii (All after Haeckel from Kiihn). 



