214 Mr. D. Sharpe and Mr. Salter on PalcBozoic Fossils from South Africa. 



The specimens are all broken internal casts, too imperfect to allow of a proper 

 description of the species ; but, being the only Gasteropod from the formation, 

 they could not with propriety be omitted. 



Conularia Africana, Sharpe. PI. XXVII. fig. 13. 



C. testa pyramidali ; lateribus sequalibus, transversim radiatis, medio depressis, angulis 

 rotundatis ; radiis binis, aequalibus, arcuatis, junioribus medio laterum interruptis, adultis 

 continuis : radiorum interstitiis laevibus ? 



Shell pyramidal with equal sides, each of which has a depression down its 

 middle ; transverse section nearly rectangular, with the corners rounded off and 

 deeply indented : sides ornamented with numerous parallel projecting ribs, which 

 in the internal cast are formed of two sharp ridges enclosing a rounded furrow (see 

 fig. 13 b) : the ribs slope upwards from the corners towards the middle of the sides, 

 and in the young shell meet at an angle, cross the mesial depression, and slightly 

 overlap one another ; but in older shells they are continuous across the side of the 

 shell in a curve : the interstices between the ribs appear to be smooth ? 



Found at the Cedarberg, in nodules of dark-coloured rock, weathering ferrugi- 

 nous ; in one instance the Conularia is associated with casts of Orthis palmata. 



Fig. 13 a, fragment of the internal cast of an old specimen ; fig. 13 b, enlarged 

 portion of fig. 13 a ; fig. 13 c, section of another specimen, slightly crushed. 



Besides the species above described, the collection contains some imperfect 

 specimens of another species of Conularia, which is more nearly related to C. 

 quadrisulcata of the Coal-measures of Coalbrook-dale, figured in the Trans. Geol. 

 Soc. 2nd Series, vol. v. pi. 40. fig. 2 ; but the specimens are not in condition to 

 admit of a good comparison. 



There are also a Bellerophon and a Theca, which have been accidentally omitted 

 in the plates, and of which woodcuts (figs. 1-4) and descriptions have been added 

 by Mr. Salter. 



Bellerophon (Euphemus) quadrilobatus, Salter. 

 Woodcut, figs. 1 & 2. 



B. modicus, involutus, umbilico parvo rotundato; an- 

 fractibus tumidis 3-lobatis, lobo dorsali multo majore, 

 utrinque rotundato, per medium planato et quasi de- 

 presso ; apertur^ lata, lunata, utrimque emarginata. , 



Involute, with a very small umbilicus, the edges 

 of which are rounded. Whorls thick, broader Yigs. i & 2. Bellerophon guadriiobatits. 

 than deep, with a concentric sulcus on each side, ^&;^- neca^ubwgmiis ; ajonion onheiii- 



^ ' ' temal cast remaining. (With Tentaculites.) 



and with a very broad, flattened, and almost two- Fig. 4. Transverse section of 7%eeosMSff?«fl«». 



