1870.J 



GRTESBACH GEOLOGY OF NATAL. 



67 



minent tubercles, which become stronger near the ventral margin. 

 The teeth are 2 — 3, the left divided and striated. The surface is 

 divided near the posterior margin longitudinally by two or three 

 furrows into as many areas, transversely striated and ribbed. The 

 ribs are slightly curved, and in the inner carina they stand perpen- 

 dicularly to the posterior margins. T. STiepstonei shows distinct 

 differences from Trigonia elegans, Baily, in its strong and thick 

 tubercles, in the general rough surface of the valves, and also in 

 its shape. Our species is thicker, and the ventral margin is plicated. 

 Very common, forming entire beds in the sandstone. This species 

 seems to have been commoner at the base of the stratum ; but the bed 

 is not divisible into different horizons. 



Kamed after the Hon. Theophilus Shepstone, the Secretary of 

 Native Affairs fix the Colony of Natal. 



Locality. Umtamfuna river. 



Cardiad^. 



Caediitm benticulatttm, Baily. PL III. fig. 12. 



To Mr. Baily's description I have only to add that the pallial 

 line is simple, and not in the least sinuous. Cardinal teeth 2; 

 lateral ones 1,1. 



A small Astarte seems to be not uncommon. A Teredina is also 

 found in large masses in fossil wood at the lowest part of the deposit. 





ECHINODERMATA. 







Hemiaster FoRBEsii, Baily. 



HoLAsTEB iNDictrs, Forb. 



DiADEMA, sp. PL III. fig. 13. 



Tabh of the Range of the Fossils of the Umtamfuna River. 





Cephalopoda. 



Gasteropoda. 



Bivalves. 



Echinod. 



New species, or peculiar to 

 the African locality 



In- the Arrialoor group ... 



1 



1 



3 



7 

 3 of these 

 nearly al- 

 lied to 

 Ind. sp. 



2 



|- 1 



^ 2 



Trichinopoly group 





11 







■ 

 Ootatoor and Valudayur 

 groups, India 



4 



1 







Total of species which also 

 occur in India 



5 



13 



.2 



2 



p2 



