On the Senonian Ammonite Fauna of Pondoland. 
129 
Nowak and by the writer for the Zululand example. Since the description 
of the latter was based only on the photographs and plaster cast of the 
dorsal area, it is uncertain, of course, whether it belongs to the present 
species. A comparison of the casts of the dorsal areas of the two forms, 
however, shows that at any rate the inner whorls, with the typical strongly 
projected Parapuzosia ribbing, are closely similar. 
Genus Schluteria, Grossouvre em. 
12. Schluteria simplex, v. Hoepen sp. 
1921. Desmoceras simplex, v. Hoepen, loc. cit., p. 19, pi. iii, figs. 11-16, 
text-fig. 10. 
1921. Schluteria ivoodsi, Spath, Pondoland, p. 45, pi. vii, fig. 1. 
The writer does not lay stress on minute differences in the convexity of 
the sides, proved to be due to sexual dimorphism in the recent Nautilus. 
The dimensions of the two forms, quoted in the synonymy, agree, but 
whereas Dr. van Hoepen had comparatively small examples, the specimen 
figured by the writer measured 85 mm. in diameter. 
13. Schluteria crassa, v. Hoepen sp. 
1906. Phylloceras sp., Woods, loc. cit., p. 332, pi. xli, fig. 5. 
1921. Desmoceras crassum, v. Hoepen, loc. cit., p. 20, pi. iv, figs. 3-4, 
text-fig. 11. 
This form shows more inflation than the last species. It is interesting 
to note the complexity of its suture-line at a small diameter as compared 
with that of the Santonian form figured by Grossouvre.* 
Genus Hauericeras, Grossouvre. 
14. Hauericeras gardeni, Baily sp. 
1921. Spath, Zululand, loc. cit., p. 238, text-fig. A. 
1921. v. Hoepen, loc. cit., p. 27, text-fig. 15. 
1921. Spath, Pondoland, loc. cit., p. 50 (table). 
To the writer's notes on this form in the above-mentioned paper it is 
only necessary to add that the late G. C. Crick took measurements of 20 
out of the 37 examples in the present collection, and the mean of these 
measurements is : 
whorl-height =35 per cent, of the diameter, 
whorl-thickness =19 ,, ,, ,, 
umbilicus =39 ,, ,, ,, 
* Loc. cit., 1894, pi. xxxvii, fig. 9 (as Desmoceras pyrenaicum). 
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