202 



Mr. D. Sharpe on Secondary Fossils from South Africa. 



Trigonia Herzogii, Hausmann, sp. {Krauss, loc. cit. pi. 48. fig. 3 ; 1 Sunday and Zwartkop 

 Goldfuss, Pet. Germ. pi. 137- fig. 5) J Rivers. 



, sP' (?) Sunday River. 



This variety (or possibly distinct species) is closely allied to 

 Trigonia Herzogii, but is more quadrate in outline than the 

 common variety, the anterior edge being truncate ; and the 

 costal rows of knobs turn forwards as they approach the 

 ventral border, instead of passing downwards and back- 

 wards. These specimens came from Algoa Bay, and ap- 

 parently have been derived from the Sunday River district, 

 from the aspect of their matrix. They were lately presented 

 to the Society's Museum by J. S. Bowerbank, Esq., F.G.S. 



conocardiformis; Krauss, sp. [loc. cit. pi. 49, fig. 1) 



ventricosa, Krauss, sp. {loc. cit. pi. 49. fig. 2) 



Anoplomya lutraria, Krauss {loc. cit. pi. 49. fig. 1) . 



Pholadomya Dominicalis, Sharpe. PI. XXII. fig. 6 



Myacites Bainii, Sharpe. PI. XXII. fig. 7 • • • 



Ceromya papyracea, Sharpe. PI. XXII. fig. 8 . . 



Gastrochaena Dominicalis, Sharpe. PI. XXIII. fig. 4 



Psammobia Atherstoni, Sharpe. PI. XXII. fig. 11 . 



Cyprina rugulosa, Sharpe. PI. XXII. fig. 9 . . . 



Astarte Herzogii, Hausmann, sp. {Krauss, loc. cit. pi. 47. fig. 2 ; "j 



Goldf. Pet. Germ. pi. 149. fig. 10) . . / 



, Bronnii. Krauss {loc. cit. pi. 48. fig. 1) 



Several small Bivalves (undeterm.) ; from Sunday River and from 

 Serpula, sp. Large single tube, on Trigonia Herzogii .... 



, sp. Small numerous winding tubes, on Gri/pheece . . 



Fucoid ? Branching, with clavate branches, 1 inch long ; in 



Sunday and Zwartkop 



Rivers. 

 Zwartkop River. 

 Zwartkop River. 

 Sunday River. 

 Sunday River. 

 Zwartkop River. 

 Sunday River. 

 Sunday River. 

 Sunday River. 



Zwartkop River. 



Zwartkop River. 

 Zwartkop River. 

 Sunday River. 

 Sunday River. 



greenish-grey sandstone containing a small specimen of Tri- , 

 gonia conocardiformis} J 



Wood; lignite (almost jet), with Ostra(B attached .... 



' — (coniferous) ; calcareous, from Geelhoutboom . . . 



(coniferous) ; calcareous, perforated by Gastrocheenm. 



PI. XXIII. fig. 4 



calcareous 



Sunday River. 



Sunday River. 



Lowest strata of 

 Zwartkop crag. 



Note. — None of these Mollusks above enumerated can be identified with any 

 known European species ; but the forms which they most nearly resemble are 

 those which are found in the middle and lower part of the Oolitic series. Mr. Bain 

 probably places the beds rather too low when he compares them to the Lias ; but 

 Dr. Krauss's proposal to place them in the Cretaceous series seems to rest on still 

 weaker grounds. — Daniel Sharpe. 



