Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 236. Menabites (Australiella) australis (Besairie, 1930). SAS-Z1847. X 0,8. CRETACEOUS FAUNAS FROM SOUTH AFRICA 311. Fig. 237. Menabites {Australiella) austmlis (Besairie, 1930). SAS-Z2101. X 0,84. more rounded, narrower whorl section (Fig. 230D) than the latter, and hasdifferently evolving ornament in that the ventrolateral spine weakens andbecomes absorbed in the ribbing. SAS-Z191 (Fig. 232) is very much likeM. {A.) moreti, in being more inflated and weaker ornamented than typicalM. (A.) australis, pointing to
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 236. Menabites (Australiella) australis (Besairie, 1930). SAS-Z1847. X 0,8. CRETACEOUS FAUNAS FROM SOUTH AFRICA 311. Fig. 237. Menabites {Australiella) austmlis (Besairie, 1930). SAS-Z2101. X 0,84. more rounded, narrower whorl section (Fig. 230D) than the latter, and hasdifferently evolving ornament in that the ventrolateral spine weakens andbecomes absorbed in the ribbing. SAS-Z191 (Fig. 232) is very much likeM. {A.) moreti, in being more inflated and weaker ornamented than typicalM. (A.) australis, pointing to the close relationship between the two species. M. {A) antsirasiraensis lacks the depressed whorl section and loses theventrolateral spine at diameters between 70 and 80 mm. 312 ANNALS OF THE SOUTH AFRICAN MUSEUM
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
