Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . e late General Maurice Collignon, Moirans, France. Material Paratypes are SAS-H179/19, locality 6, excavations in the Enseleni Reserve,Zululand, St Lucia Formation, Santonian II-III; SAS-Z866, Z1754, Z1755,BMNH-C81551-C81558, locality 74, north-western part of False Bay atDie Rooiwalle, Zululand, St Lucia Formation, Santonian I-II; SAS-Z351,from an unknown locality near Mfolozi, probably locality 14, St Lucia Forma-tion, Santonian II to Campanian I; BMNH-C81507-C81508, from foreshoreexposures west of Listers Point, Zu
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . e late General Maurice Collignon, Moirans, France. Material Paratypes are SAS-H179/19, locality 6, excavations in the Enseleni Reserve,Zululand, St Lucia Formation, Santonian II-III; SAS-Z866, Z1754, Z1755,BMNH-C81551-C81558, locality 74, north-western part of False Bay atDie Rooiwalle, Zululand, St Lucia Formation, Santonian I-II; SAS-Z351,from an unknown locality near Mfolozi, probably locality 14, St Lucia Forma-tion, Santonian II to Campanian I; BMNH-C81507-C81508, from foreshoreexposures west of Listers Point, Zululand, St Lucia Formation, Santonian I-II;BMNH-C81515, from foreshore exposures north of Picnic Point, St LuciaFormation, Santonian I-II; a body chamber fragment NMB-D1353, locality 73,St Lucia Formation, Santonian I, may also be referred to this species; SAM-PCZ5711, labelled Cretaceous also belongs to the species, and, judgingby the matrix, this specimen may have been collected in the vicinity of locality 74at Die Rooiwalle. CRETACEOUS FAUNAS FROM SOUTH AFRICA 127. DO *^ .^^ N r- <| as S o C/3 128 ANNALS OF THE SOUTH AFRICAN MUSEUM Dimensions D Wb Wh Wb: Wh U Int. Ext H179/19 Z866Z1754Z351Z1755 255,0257,0213,0230,0 31,6 66,0(29,3) 59,0(22,9) 51,0(23,9) 56,5(24,6) 43,0 86,0(33,7) 89,0(34,6) 66,0(30,9) 79,0(34,3) 0,730,770,660,770,72 116,0(45,5) 117,0(45,5) 106,0(49,8) 99,0(43,0) 322732 323332 Description Coiling is evolute, with an umbilical width varying between 43 and 49 percent of the diameter, but usually of the order of 45 per cent. Whorl overlap isminimal, and the dorsal zone of impression consequently small. The whorl section in all the available specimens is higher than wide through-out, but differs in details from one specimen to another, and also throughoutontogeny (Fig. 95B, 96A). The umbilical wall is virtually vertical on the innerwhorls, but becomes rounded on the outer whorls, merging gently into thegently inflated flanks. The flanks converge gradually
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
