Pars 8 



325 



11 



i 



cS 



Sageceras 



Sagenites , 



Trachysagenites 



Sandlingites 



Sibirites , 



Metasibirites , 



Thetidites , 



Sibyllites , 



Siculites , 



Sirenites , 



Anasirenites , 



Diplosirenites , 



Smithoceras 



Sphaerites 



Sphingites 



Stacheites , 



Steinmannites 



Stephanites , 



Sturia , 



Styrites , 



Tardeceras , 



Tellerites , 



Thanamites , 



Thisbites 



Tibetites 



Anatibetites 



Neotibetites 



Paratibetites 



Tirolites 



Bittnerites 



Hololobus 



MetatiroUtes 



Svilajites 



Tornquistites 



Trachyceras 



Anolcites 



Protrachyceras 



Tropiceltites 



Arnioceltites . . . ^ 



Tropites 



Anatropites 



Gymnotropites 



Microtropites 



Paratropites 



Paulotropites 



Ussuria 



Vishnuites 



Waldthausenites . . 



Xenaspis 



Xenodiscus 



2 



