On Cretaceous Cephalopoda from Zululand. 263 



represents a very similar form of Eutr&phoceras to the specimen here 

 described, with the thickness about equal to the diameter, but the 

 siphuncle is veutrocentran in the Antarctic form, as it is in the far less 

 depressed N. Imxleyanus, Blauford. 



Locality. Umfolozi Valley, East of Railway. Coll. J. L. Tiling- 

 worth. 



24. EUTREPHOCERAS cf. suBLAEviGATUM (d'Orbigny) var. INDICA 



(Spengler). 



18G1. Nautilus boucliardianus, d'Orbigny. Blanford, Cret. Fauna S. 



India (Pal. Indica), vol. i, " Cephalop.," pi. v, fig. 3. 

 1910. Nautilus sublaevigatus var. indica, Spengler. " Untersuch. ii. d. 



Siid-Ind. Kreideform. Pt. iv. Die Nautil. und Bel. d. Trichi- 



nopoly Distr.," Beitr. z. Pal. uud Greol. Ost -Ung., vol. xxiii, pt. iii, 



p. 137. 



A nearly complete but slightly weathered example of a Nautilus 

 (No. 5509) agrees well in proportions with the large specimen figured 

 by Woods," and at a diameter of 150 mm. has a thickness of 

 110-115 mm. The sides and ventral area, however, are more 

 flattened (weathered?), giving the whorl a more quadrate shape. The 

 last half whorl of the specimen represents the body-chamber, with 

 indications of a mouth-border at the end. Several specimens of 

 Baculites are embedded in the matrix of this body-chamber. 



Since the specimen was not broken up to reveal position of the 

 siphuncle, presence of an annular lobe, etc., the identification with the 

 Indian form of N. sublaeviyatus, with which Woods also had compared 

 his Pondoland example, must remain doubtful. It is based on 

 similarity of whorl-shape and dimensions and general agreement with 

 Blanford's fig. 3. 



The probably Ceuomanian Eutrephoceras ovolcJeum, G. C. Crick sp.,t 

 has a more elevated whorl-section, and Nan t Hits [Cyniatoeeras?] 

 ucclusus, Gr. G. Crick, is too inflated in the umbilical region. 



Some of the Nautilus (Eutrephoceras) sp., described by Crick* from 

 the South Branch of the Manuan Creek, Zululand, may belong to the 

 present Senoniau species. 



Locality Umkwelane Hill, Umfolozi, Zululand. Coll. Dr. A. L. 

 du Toit. 



* Loc. cit. (1906), p. 330, text-fig. 1 on p. 331. 



t Loc. cit. (1907), p. 222. 



J Loc. cit. (1907), p. 245, B.M., Nos, 018292-5. 



