302 Annals of the South African Museum. 



Tliis specimen is the only oue in the collection from " High Ground, 

 South Side of South Branch of Mauuau Creek, just below Wagon- 

 Drift." Coll. W. J. Wybergh. Its assumed Seuonian age thus is 

 not supported by Ammonite evidence, and its mode of preservation 

 is distinct from that of any of the other specimens in this collection. 



OBSERVATIONS ON THE MANUAN CREEK FAUNA. 



The relations of the Manuan Creek fauna have been discussed in 

 detail by Crick and Newton, but it has been mentioned in the intro- 

 ductory part of this paper that the presence of Albian, Ceuomauiau 

 and Lower and Upper Senonian forms was not clearly recognised, so 

 that a revision of the faunas has become necessary. With regard to 

 the Ammonoids, the few Senouian forms here described have already 

 been referred to in the observations on the Umkwelane Hill fauna. 

 They include the Coniacian^- 



Peroniceras cf. dravidicum, Kossmat sp., 



to which have to be added the two Pemiin-rrtis recorded by Crick, with 

 the Ceuomanian False Bay fauna, and here referred to on p. 296, namely : 



Peroniceras cf. czornigi, Redtenbacher, sp. 



Peroniceras cf. rousseauxi, de Grossouvre. 



To the presumably Campanmn. Ammonites described in this paper, 

 namely, 



Kossmat iceras (Madrasites} bhavani, Stoliczka sp. 



Placenticeras cf. subJcaffrarium, nov. 



must be added the following forms described by Crick from the South 

 Branch of the Man nan Creek : 



Gaudryceras /</'/</<//'///, Crick.* 



Gaudryceras cf. kmj>-i. Forbes sp. j Gandryceraa x/. in Crick, 

 p. 238.] 



Diplomoceras '? sp. [Anisoceras sp. in Crick, p. 239.] 



Bacilli fe* cf. en/it'll*!*. Woods [Bncnlites sj>. in Crick, p. 240.] 



Hfllli'i'lrt'i-nx sp.t 



The Upper Seuoniau fauna of the Mauuau Creek District thus 

 shows a greater resemblance to the fauna of the Umzamba Group of 

 Pondolaud (so-called Umtamvuna Beds) than to the Umkwelane Hill 

 fauna, which is much nearer, geographically, but which represents a 

 different facies. 



* Gaudryceras sp. (p. 239 in Crick) probably is a badly weathered fragment 

 of this species. 



t P. 242, pi. xv, fig. 5, the inner whorls erroneously being represented as 

 having an acute venter. For Hauericeras sp. (p. 243), see above, tinder Uhlitjella 

 sp. n. cf. stoliczJcai, Kossmat sp. (p. 276, footnote t). 



