48 Ammonoidea from Pondoland 



extremely close to the present form, which itself is apparently allied 

 to Madrasites madrasinus Stoliczka sp. 1 



10. — Madrasites similis, sp. nov. Plate VT, figs, la, b. 



This species is based on a specimen of dimensions : 100 , 38- , 33--34. 

 It differs from Kossmaticeras sparsicostatum, Kossmat sp. 2 , which has 

 similar dimensions and the same number of constrictions (five), 

 notably in the presence of prominent, umbilical, tubercles, about 

 twelve per whorl, and in having the costse recti- to rursiradiate, not 

 prorso-radiate. It stands in the same relationship to M. faku, van 

 Hoepen sp., as Kossmaticeras sparsicostatum does to the Indian 

 K. theobaldi?mm, Stoliczka sp. The whorl-section is more rounded, 

 ventrally, in the present species, whereas Kossmat's form' seems to 

 have the periphery slightly compressed towards the end of the shell. 

 The suture-line is not visible : the terminal portion of the outer whorl 

 belongs to the body-chamber. 



11. — Madrasites africanus, van Hoepen sp. 



1920. Ilolcodiscus africanus, van Hoepen, loc. cit. p. 146, pi. xxvi, 

 figs. 3-5. 



This species is represented by one example of 21 mm. diameter, 

 agreeing with the type. 



The ' Holcodiscus ' sp. figured by Woods 3 and which was considered 

 to be close to Jacobites anderssoni by Kilian &l Reboul, 4 has a much 

 smaller umbilicus. 



Genus PARAPACHYDISCUS, Hyatt. 



12. — Parapachydiscus? sp. nov. 1 ? Plate VII, figs. 5a, b. 



The figured immature example (dimensions : 30-'46- - 40?— - 25) and 

 a fragmentary second specimen, that may belong to the same species, 



1 loc, cit. (1865), p. 139, pi. lxx, figs. 1-3. 



2 loc. cit, (1897), p. 38 (145), pi. vi, fig. 5. 



3 loc. cit. 1906, p. 336, pi. xlii, fig. 2. 



4 loc. cit. 1909, pp. 62-3. Nothing like the adult Jacobites however, seems 

 to have been found in Pondoland. 



