134 
Transactions of the Royal Society of South Africa. 
21. Parapachydiscus ? sp. no v.? 
1921. Spath, Pondoland, p. 48, pi. vii, figs. 5a, b. 
This form, possibly a young Kitchinites, is not an immature example of 
one of the species of Parapachydiscus described above, but is too small for 
accurate identification. 
Sub-family KOSSMATICERATINAE. 
Genus Madra sites, Kilian and Eeboul. 
22. Madrasites natalensis (Crick MS.), Spath. 
(Plate V, fig. 3.) 
1921. " Cret. Ceph. fr. Zululand," Ann. S. Afr. Mus., xii, pt. vii, No. 16, 
p. 300. 
1921. " Up. Cret. Amm. fr. Pondoland," Ann. Durban Mus., iii, pt. 2, 
table to p. 50. 
This species is based on a well-preserved specimen (No. C 19432) of dimen- 
sions 81- — 34 — -40 — 30. It shows the aperture well, like the form' of 
Madrasites described below, and was characterised, in the writer's previous 
papers, as being closely allied to M. faku, van Hoepen sp. The latter has 
a smaller umbilicus and coarser costation therein, and the suture-line is 
drawn with comparatively simple elements, whereas in the present species 
it is as ramified as that of Grossouvrites gemmatus (Huppe in Steinmann). 
Mr. Crick's long original description is not now given, since fig. 3 of Plate V 
will show how close the present species is to M.faJcu, v. Hoepen sp. 
23. Madrasites acuticostatus (Crick MS.), Spath. 
(Plate VIII, fig. 2.) 
1921. Spath, Zululand, p. 300. 
1921. „ Pondoland, table to p. 50. 
This species is represented by a single well-preserved example (No. 
C 19433) of dimensions 100 — 37—36 — 28, and was described at length 
by Mr. Crick as Holcodiscus acuticostatus. It may suffice to quote the 
following sentence : — 
" Compared with the previous species (H. natalensis), the present species 
has a relatively coarser sculpture on the inner, and a finer sculpture on the 
outer, whorls ; it is also a more compressed shell, with a wider umbilicus, and 
a larger number of tubercles on the umbilical margin." 
