Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . a or compressa was superfluous, and subsequently regarded the varietyinflata as representing T. subsimbirskense with Sinzows (1905, pi. 22(figs 4-5)) specimen as lectotype. It should be pointed out here that the original spelling in the Russian text(Sinzow 1905: 320) is subsimeirskense, and subsimbirskense in the Germanresume. The species is named after the Russian district of Simbirsk, and thename in the Russian text is obviously a typographical error. The valid name isthus subsimbirskense. CRETACEOUS FAUNAS FRO
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . a or compressa was superfluous, and subsequently regarded the varietyinflata as representing T. subsimbirskense with Sinzows (1905, pi. 22(figs 4-5)) specimen as lectotype. It should be pointed out here that the original spelling in the Russian text(Sinzow 1905: 320) is subsimeirskense, and subsimbirskense in the Germanresume. The species is named after the Russian district of Simbirsk, and thename in the Russian text is obviously a typographical error. The valid name isthus subsimbirskense. CRETACEOUS FAUNAS FROM SOUTH AFRICA 259 T. subsimbirskense subsimbirskense differs from the subspecies compressumin having a more inflated and depressed whorl section and a smaller umbilicaldiameter. Ribbing on the nominal subspecies also appears to be more sinusoidalwhen compared to the rursiradiate to rectiradiate ribbing of the subspeciescompressum. Dimitrovas (1967: 63, pi. 12 (fig. 1)) specimen is more suitably placed inthe nominal subspecies rather than in T. subsimbirskense I Fig. 26. Tropaeum aff. subsimbirskense subsimbirskense (Sinzow, 1905). SAS EM 109 fromManyola Drift, Zululand, Aptian III. x 0,3. 260 ANNALS OF THE SOUTH AFRICAN MUSEUM
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
