On Cretaceous Cephalopoda from Zululand. 221 



horizon for the Manuan Creek Fauna, and though he points out 

 that " several of the species bear a distinctly older appearance," he 

 goes on to say : " Taking into consideration . . . that there is 

 no great difference in the lithological character of the matrix accom- 

 panying the various specimens from the Manuan Creek, it would seem 

 that we are dealing with a fauna of one geological age which may be 

 regarded as Emscherian or Lower Senonian, since it includes Veniella 

 forbesiana, a characteristic pelecypod of the Upper Trichinopoly beds 

 of Southern India . . ." 



The Ammonites of the present collection include a number of typical 

 forms that confirm the presence, at some of the localities, of deposits 

 of various geological ages. The collection includes : 



(a) A typical Albian fauna from " Manuan Creek " and the 

 "Middle Branch, Manuau Creek" (19 specimens). 



(6) Albian and Senonian Ammouitids from the " south side of 

 Manuan Creek Valley," from " high ground on north side of United 

 Manuan Creek and Umsiueue River, almost opposite junction " ; and 

 from " Low Ridge about 3 m. east of foot of Lebombo Mountains, 

 north of M'Kusi River, due east of Ubombo " (10 specimens). 



(c) Senonian examples from the " North-West Shore of False Bay " 

 (2 specimens). 



(d) Aptiau Ammonites from Powell's Camp, Upper Catembe 

 (3 specimens). 



(e) A Senonian fauna from Umkwelane Hill. This includes over 

 forty specimens (half of which number ax&Bacvlites), mainly from Um- 

 kwelane Hill itself ( = d on the accompanying sketch-map), but 

 comprising a few examples from the three neighbouring localities : 

 Lake Itesa (Eteza) (= a on map), the railway cutting (== 6 on map), 

 and the Uinfolozi Valley, east of railway (= c on map). This fauna, 

 first made known by Etheridge,* probably corresponds in age with 

 the Pondoland fauna described by Woods. t 



The following note by Dr. A. L. du Toit, dated March 20th, 1920, 

 describes the nature of the deposits : 



" At Umkwelane Hill, the Cretaceous rests directly upon Stormberg 

 basalts (Liassic?), the strata being hard shelly limestones and softer 

 buff -coloured sandstones and other softer beds, rarely exposed ; 

 pebbles of older formations are found occasionally in them. The first 

 fossiliferous limestone comes in a few feet from the base. These bands 



* " Cretaceous Fossils of Natal," pt. i : " The Umkwelane Hill Deposit, Zulu- 

 land," ' Second Eeport Geol. Surv. Nat. and Zulul.,' 1904, pp. 69-93, pis. 



t " The Cretaceous Fauna of Pondoland," ' Ann. S. Afr. Mus ,' vol. iv, pt. vu, 

 No. 12 (1906). 



