Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . much more delicately andflexuously ribbed, with more secondary ribs. R. subtuberculatus (Gerhardt)(1897: 156, pi. 3 (fig. 12)) has far fewer ribs, lacks buflae, and has a broaderventer without obvious ribs but rather with striae between ventrolateral andsiphonal clavi. There is a striking similarity between R. lornae and Schlonbachia (Gau-thiericerasy crioceratiformis Liithy (1918: 43, pi. 3 (fig. 2)) from the Coniacianof Peru. The outer whorl of the wholly septate holotype of this species uncoils,perhaps due to patho
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . much more delicately andflexuously ribbed, with more secondary ribs. R. subtuberculatus (Gerhardt)(1897: 156, pi. 3 (fig. 12)) has far fewer ribs, lacks buflae, and has a broaderventer without obvious ribs but rather with striae between ventrolateral andsiphonal clavi. There is a striking similarity between R. lornae and Schlonbachia (Gau-thiericerasy crioceratiformis Liithy (1918: 43, pi. 3 (fig. 2)) from the Coniacianof Peru. The outer whorl of the wholly septate holotype of this species uncoils,perhaps due to pathological disturbance of growth, and further material isneeded before placing lornae in synonymy with crioceratiformis. Occurrence St. Lucia Formation of Zululand. Precise age unknown but certainlyConiacian and possibly Coniacian IV. Genus Forresteria Reeside, 1932Type species Barroisiceras (Forresteria) forresteri Reeside (1932: 17, pi. 5 (figs 2-7)), bythe subsequent designation of Wright (1957: L432) = Acanthoceras (Prionotro- 252 ANNALS OF THE SOUTH AFRICAN MUSEUM ^^#^.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
