IV 
СТРАН. 
Gephyroceras auritwn n. sp. . . 35 
Gephyroceras uchtense Keys.. . . 36 
Gephyroceras Keyscrlingi n. sp. . 38 
Gephyroceras Lébedeff n. sp. . . 39 
Gephxjroceras syrjanicum n. sp. . 40 
Timanites Mojs.41 
Timanites acutus Keys.43 
Timanites Stuchenbergi n. sp. . . 45 
Prolecanitidae Hvatt.45 
Prolecanites Mojs.45 
Prolecanites timanicus n. sp. . . 47 
Приложеніе .48 
Spathiocaris Clarke.48 
Добавленіе .56 
SEITE. 
Gephyro cras auritum n sp. . . 35 
Gephyroceras uchtense Keys . . 36 
Gephyroceras Keyserlingi n. sp. . 38 
Gephyroceras Lebedeffi n. sp. . . 39 
Gephyroceras syrjanicum n. sp. .40 
Timanites Mojs.41 
Timanites acutus Keys.43 
Timanites Stuchenbergi n. sp. . . 45 
Prolecanitidae Hyatt. ... .45 
Prolecanites Mojs.45 
Prolecanites timanicus n sp. . . 47 
Anliang.48 
Spathiocaris Clarke.48 
Nachtrag.56 
